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  • 201.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Aghasyan, M.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Russia.;Czech Tech Univ, Prague 16636, Czech Republic..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Barth, J.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Bordalo, P.
    Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Capozza, L.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Dreisbach, Ch.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Duennweber, W.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Faessler, M.
    Ferrero, A.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Fischer, H.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Gerassimov, S.
    PN Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Grabmueller, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Haas, F.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Hamar, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Heinsius, F. H.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Herrmann, F.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    d'Hose, N.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Joerg, P.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Klein, F.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Kolosov, V. N.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Konorov, I.
    PN Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Kraemer, M.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Kremser, P.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kunne, F.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Lehmann, A.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Levillain, M.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lian, Y. -S
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan..
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Meyer, M.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Mikhailov, Yu. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Mitrofanov, N.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.;Univ Piemonte Orientale, I-15100 Alessandria, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.;Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Platchkov, S.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Pochoqzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany.;Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ryabchikov, D. I.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Samoylenko, V. D.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Schmieden, H.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Seder, E.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Sozzi, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Subrt, O.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Szabelski, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Sznajder, R.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Tessaro, S.
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    Univ Saclay Paris, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    PN Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Wallner, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Windmolders, R.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    ter Wolbeek, J.
    Univ Fribourg, Inst Phys, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Zavertyaev, M.
    PN Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Zhuravlev, N.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Multiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target2017In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 767, p. 133-141Article in journal (Refereed)
    Abstract [en]

    Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar (LiD)-Li-6 target. They cover the kinematic domain 1 (GeV/c)(2) < Q(2) < 60 (GeV/c)(2) in the photon virtuality, 0.004 < x < 0.4, 0.1 < y < 0.7, 0.20 < z < 0.85, and W > 5 GeV/c(2) in the invariant mass of the hadronic system. The results from the sum of the z-integrated K+ and K- multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit.

  • 202.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Aghasyan, M.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Andrieux, V.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Czech Tech Univ, Prague 16636, Czech Republic.
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland.
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland.
    Birsa, R.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Braun, C.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Chung, S. -U
    Cicuttin, A.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Crespo, M. L.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Curiel, Q.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Torre, S. Dalla
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Denisov, O. Yu.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Donskov, S. V.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan.
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.
    Duennweber, W.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Faessler, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal.
    Hohenesche, N. du Fresne von Vijayan
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;CERN, CH-1211 Geneva 23, Switzerland.
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Gorzellik, M.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy;Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Grabmueller, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Hamar, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan.
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Khaustov, G. V.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Khokhlov, Yu. A.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia.
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Kolosov, V. N.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan.
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Konstantinov, V. F.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kremser, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Lednev, A. A.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Levorato, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Lian, Y. -S
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland.
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan.
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan.
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Mikhailov, Yu. V.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal.
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Panzieri, D.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Polyakov, V. A.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany.
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal.
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal.
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ryabchikov, D. I.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Samoylenko, V. D.
    Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia.
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Santos, C.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schmidt, K.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy;Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Schönning, Karin
    CERN, CH-1211 Geneva 23, Switzerland.
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal.
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic.
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal.
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic.
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    Szabelski, A.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Szameitat, T.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy;Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Tessaro, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Tessarotto, F.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Thibaud, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    ter Wolbeek, J.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy;Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zhuravlev, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Azimuthal asymmetries of charged hadrons produced in high-energy muon scattering off longitudinally polarised deuterons2018In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 78, no 11, article id 952Article in journal (Refereed)
    Abstract [en]

    Single hadron azimuthal asymmetries of positive and negative hadrons produced in muon semi-inclusive deep inelastic scattering off longitudinally polarised deuterons are determined using the 2006 COMPASS data and also combined all deuteron COMPASS data. For each hadron charge, the dependence of the azimuthal asymmetry on the hadron azimuthal angle f is obtained by means of a fiveparameter fitting function that besides a f-independent term includes four modulations predicted by theory: sin f, sin 2f, sin 3f and cos f. The amplitudes of the five terms have been extracted, first, for the hadrons in the whole available kinematic region. In further fits, performed for hadrons from a restricted kinematic region, the f-dependence is determined as a function of one of three variables (Bjorken-x, fractional energy of virtual photon taken by the outgoing hadron and hadron transverse momentum), while disregarding the others. Except thef-independent term, all themodulation amplitudes are very small, and no clear kinematic dependence could be observed within experimental uncertainties.

  • 203.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Aghasyan, M.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Amoroso, A.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Andrieux, V.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA;Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Czech Tech Univ, Prague 16636, Czech Republic.
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland.
    Balestra, F.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Bedfer, Y.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland.
    Birsa, R.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Braun, C.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Chang, W-C
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Chiosso, M.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Chung, S-U
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA;Pusan Natl Univ, Dept Phys, Busan 609735, South Korea.
    Cicuttin, A.
    Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Crespo, M. L.
    Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Curiel, Q.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Dalla Torre, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Denisov, O. Yu
    INFN, Torino Sect, I-10125 Turin, Italy.
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Donskov, S. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan.
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.
    Duennweber, W.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal.
    von Hoheneschem, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Frolov, V.
    CERN, CH-1211 Geneva 23, Switzerland;Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Fuchey, E.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, Bochum, Germany.
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Gerassimov, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Lebedev Phys Inst, Moscow 119991, Russia.
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Gnesi, I.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Grabmueller, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grasso, A.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Hamar, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    d'Hose, N.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Hsieh, C-Y
    Natl Cent Univ, Dept Phys, 300 Jhongda Rd, Jhongli 32001, Taiwan;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.
    Ivanov, A.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Ivanshin, Yu
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan.
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Joerg, R.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Khaustov, G. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Khokhlov, Yu. A.
    Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia;Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, Bochum, Germany.
    Kolosov, V. N.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan.
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Konorov, I.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Lebedev Phys Inst, Moscow 119991, Russia.
    Konstantinov, V. F.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Kotzinian, A. M.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kremser, R.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kunne, F.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Lednev, A. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Levillain, M.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Levorato, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Lian, Y-S
    Natl Kaohsiung Normal Univ, Dept Phys, Kaohsiung 824, Kaohsiung Count, Taiwan;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
    Longo, R.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makke, N.
    Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland.
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Matousek, J.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan.
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan.
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Meyer, M.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA;Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Meyer, W.
    Univ Bochum, Inst Expt Phys, Bochum, Germany.
    Mikhailov, Yu V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Neyret, D.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Nowak, W-D
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal.
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Panzieri, D.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Piemonte Orientale, I-15100 Alessandria, Italy.
    Parsamyan, B.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Peng, J-C
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany;Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Platchkov, S.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Polyakov, V. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Pretz, J.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany;Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal.
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal.
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, Bochum, Germany.
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ryabchikov, D. I.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Samoylenko, V. D.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Santos, C.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland.
    Seder, E.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal.
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic.
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal.
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic.
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    Szabelski, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Takekawa, S.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Tessaro, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Tessarotto, F.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Thibaud, F.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zhuravlev, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.
    Sivers asymmetry extracted in SIDIS at the hard scales of the Drell-Yan process at COMPASS2017In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 770, p. 138-145Article in journal (Refereed)
    Abstract [en]

    Eight proton transverse-spin-dependent azimuthal asymmetries are extracted in four regions of the photon virtuality Q(2) from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon nucleon scattering. These Q(2) regions correspond to the four regions of the di-muon mass root Q(2) used in the ongoing analyses of the COMPASS Drell-Yan measurements, which allows for a future direct comparison of the nucleon transverse-momentum-dependent parton distribution functions extracted from these two alternative measurements. In addition, for the azimuthal asymmetries induced by the Sivers transverse-momentum-dependent parton distribution function various two-dimensional kinematic dependences are presented. The integrated Sivers asymmetries are found to be positive with an accutacy that appears to be sufficient to test the sign change of the Sivers function predicted by Quantum Chromodynamics.

  • 204.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Aghasyan, M.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    CERN, CH-1211 Geneva 23, Switzerland.;CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bisplinghoff, J.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Boer, M.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buchele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Chang, W. -C
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Dunnweber, W.
    Ludwig Maximilians Univ Munchen, Dept Phys, D-80799 Munich, Germany..
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Faessler, M.
    Ludwig Maximilians Univ Munchen, Dept Phys, D-80799 Munich, Germany..
    Ferrero, A.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Frolov, V.
    CERN, CH-1211 Geneva 23, Switzerland.;Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Fuchey, E.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Grabmuller, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Hashimoto, R.
    Yamagata Univ, Yamagata 9928510, Japan..
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Hinterberger, F.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    d'Hose, N.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jahn, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Jorg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Dolgoprudnyi, Moscow Region, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Kolosov, V. N.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Konigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kramer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kremser, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kunne, F.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Levillain, M.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marchand, C.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan..
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Michigami, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Mikhailov, Yu. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Montuenga, P.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Nikolaenko, V. I.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.;Univ Piemonte Orientale, I-15100 Alessandria, Italy. Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Platchkov, S.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ryabchikov, D. I.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Samoylenko, V. D.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland.
    Schopferer, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Seder, E.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Shevchenko, O. Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sozzi, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Szabelski, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Leading-order determination of the gluon polarisation from semi-inclusive deep inelastic scattering data2017In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 77, no 4, article id 209Article in journal (Refereed)
    Abstract [en]

    Using a novel analysis technique, the gluon polarisation in the nucleon is re-evaluated using the longitudinal double-spin asymmetry measured in the cross section of semi-inclusive single-hadron muoproduction with photon virtuality Q(2) > 1 ( GeV/c)(2). The data were obtained by the COMPASS experiment at CERN using a 160 GeV/c polarised muon beam impinging on a polarised (LiD)-Li-6 target. By analysing the full range in hadron transverse momentum p(T), the different pT-dependences of the underlying processes are separated using a neural-network approach. In the absence of pQCD calculations at next-to-leading order in the selected kinematic domain, the gluon polarisation Delta g/g is evaluated at leading order in pQCD at a hard scale of mu(2) = < Q(2) > = 3( GeV/c)(2). It is determined in three intervals of the nucleon momentum fraction carried by gluons, x(g), covering the range 0.04< x(g)< 0.28 and does not exhibit a significant dependence on xg. The average over the three intervals, < Delta g/g > = 0.113 +/- 0.038(stat) +/- 0.036( syst) at < x(g) > approximate to 0.10, suggests that the gluon polarisation is positive in the measured x(g) range.

  • 205.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Aghasyan, M.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Alexeeva, M. G.aa
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Amoroso, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Antoshkin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Czech Tech Univ, Prague 16636, Czech Republic..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    INFN, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    INFN, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Duennweber, W.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.;Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Experimentalphys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Grabmueller, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Grosse Perdekamp, M.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Hamar, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Univ Bochum, Inst Experimentalphys, D-44780 Bochum, Germany.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kolosov, V. N.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.;INFN, Torino Sect, I-10125 Turin, Italy.;Yerevan Phys Inst, Alikhanian Br St, Yerevan 0036, Armenia..
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kremser, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Lian, Y. -S
    Lichtenstadt, J. J.
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.;Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan..
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Meyer, W.
    Univ Bochum, Inst Experimentalphys, D-44780 Bochum, Germany..
    Mikhailov, Yu. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    INFN, Torino Sect, I-10125 Turin, Italy.;Univ Piemonte Orientale, I-15100 Alessandria, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Pretzd, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.;Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Experimentalphys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Rogacheva, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ryabchikov, D. I.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Samoylenko, V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, Geneva, Switzerland.
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Subrtt, O.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy.;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.;Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Tessaro, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Zhuravlev, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    First measurement of the Sivers asymmetry for gluons using SIDIS data2017In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 772, p. 854-864Article in journal (Refereed)
    Abstract [en]

    The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. For quarks, it was studied in previous measurements of the azimuthal asymmetry of hadrons produced in semi-inclusive deep inelastic scattering of leptons off transversely polarised nucleon targets, and it was found to be non-zero. In this letter the evaluation of the Sivers asymmetry for gluons is presented. The contribution of the photon-gluon fusion subprocess is enhanced by requiring two high transverse-momentum hadrons. The analysis method is based on a Monte Carlo simulation that includes three hard processes: photon-gluon fusion, QCD Compton scattering and the leading-order virtual-photon absorption process. The Sivers asymmetries of the three processes are simultaneously extracted using the LEPTO event generator and a neural network approach. The method is applied to samples of events containing at least two hadrons with large transverse momentum from the COMPASS data taken with a 160 GeV/c muon beam scattered off transversely polarised deuterons and protons. With a significance of about two standard deviations, a negative value is obtained for the gluon Sivers asymmetry. The result of a similar analysis for a Collins-like asymmetry for gluons is consistent with zero. (C) 2017 The Author(s). Published by Elsevier B.V.

  • 206.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Barth, J.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    CERN, CH-1211 Geneva 23, Switzerland.;CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bisplinghoff, J.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Boer, M.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Burtin, E.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Chang, W. -C
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Duennweber, W.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Faessler, M.
    Ferrero, A.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Fischer, H.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Grabmueller, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Haas, F.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Hashimoto, R.
    Yamagata Univ, Yamagata 9928510, Japan..
    Heinsius, F. H.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Herrmann, F.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Hinterberger, F.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    d'Hose, N.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Oho, Ibaraki 3050801, Japan..
    Ivanov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jahn, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Joerg, P.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Ketzer, B.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Khaustov, G. V.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Klein, F.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Kolosov, V. N.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Kraemer, M.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Kremser, P.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Kuchinski, N.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Kunne, F.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Lehmann, A.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Levillain, M.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marchand, C.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan..
    Meshcheryakov, G.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Michigami, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Mikhailov, Yu. V.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Montuenga, P.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Nikolaenko, V. I.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Platchkov, S.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany.;Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ryabchikov, D. I.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Samoylenko, V. D.
    Kurchatov Inst, State Sci Ctr, Inst High Energy Phys, Natl Res Ctr, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schlueter, T.
    Schmidt, K.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Schopferer, S.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Shevchenko, O. Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Sozzi, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Szabelski, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    ter Wolbeek, J.
    Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany..
    Resonance production and pi pi S-wave in pi(-) + p -> pi(-) pi(-) pi(+) + p(recoil) at 190 GeV/c2017In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, no 3, article id 032004Article in journal (Refereed)
    Abstract [en]

    The COMPASS collaboration has collected the currently largest data set on diffractively produced pi(-) pi(-) pi(+) final states using a negative pion beam of 190 GeV/c momentum impinging on a stationary proton target. This data set allows for a systematic partial-wave analysis in 100 bins of three-pion mass, 0.5 < m(3 pi) < 2.5 GeV/c(2), and in 11 bins of the reduced four-momentum transfer squared, 0.1 < t' < 1.0 (GeV/c)(2). This two-dimensional analysis offers sensitivity to genuine one-step resonance production, i.e. the production of a state followed by its decay, as well as to more complex dynamical effects in nonresonant 3 pi production. In this paper, we present detailed studies on selected 3p partial waves with J(PC) = 0(-+) ,1(++) ,2(-+) ,2(++) ,and 4(++). In these waves, we observe the well-known groundstate mesons as well as a new narrow axial-vector meson a(1)(1420) decaying into f(0) (980)pi. In addition, we present the results of a novel method to extract the amplitude of the pi(-)pi(+) subsystem with I(G)J(PC) = 0(+)0(++) in various partial waves from the pi(-)pi(-)pi(+) data. Evidence is found for correlation of the f (0)(980) and f(0)(1500) appearing as intermediate pi(-)pi(+) isobars in the decay of the known pi(1800) and pi(2)(1880).

  • 207.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Alexeev, M. G.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy.;Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Barth, J.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    CERN, CH-1211 Geneva 23, Switzerland.;CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bisplinghoff, J.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Boer, M.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bordalo, R.
    Tech Univ Liberec, Liberec 46117, Czech Republic.;LIP, P-1000149 Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Bressan, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Burtin, E.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Chang, W. -C
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    d'Hose, N.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Duic, V.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Elia, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Ferrero, A.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Grabmueller, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Haas, F.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    von Harrachn, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Hashimoto, R.
    Yamagata Univ, Yamagata 9928510, Japan..
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Hinterberger, F.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jahn, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joerg, R.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Ketzer, B.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany.;Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia. Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Klein, F.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Kolosov, V. N.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    KOnigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kraemer, M.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Kremser, R.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kuchinski, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kunne, F.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Levillain, M.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marchand, C.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan..
    Meshcheryakov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Meyers, W.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Michigami, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Mikhailov, Yu. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Montuenga, P.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Nikolaenko, V. I.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Novv, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Peng, J-C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesaro, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Platchkov, S.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, P-1699 Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ryabchikov, D. I.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Samoylenko, V. D.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, R.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Inst Phys, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Schopferer, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Shevchenko, O. Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sozzi, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Srnka, A.
    Acad Sci Czech Republic, Inst Sci Instruments, Kralovopolska 147, CS-61264 Brno, Czech Republic..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Szabelski, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Sznajder, R.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Interplay among transversity induced asymmetries in hadron leptoproduction2016In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 753, p. 406-411Article in journal (Refereed)
    Abstract [en]

    In the fragmentation of a transversely polarized quark several left-right asymmetries are possible for the hadrons in the jet. When only one unpolarized hadron is selected, it exhibits an azimuthal modulation known as the Collins effect. When a pair of oppositely charged hadrons is observed, three asymmetries can be considered, a di-hadron asymmetry and two single hadron asymmetries. In lepton deep inelastic scattering on transversely polarized nucleons all these asymmetries are coupled with the transversity distribution. From the high statistics COMPASS data on oppositely charged hadron-pair production we have investigated for the first time the dependence of these three asymmetries on the difference of the azimuthal angles of the two hadrons. The similarity of transversity induced single and di-hadron asymmetries is discussed. A new analysis of the data allows quantitative relationships to be established among them, providing for the first time strong experimental indication that the underlying fragmentation mechanisms are all driven by a common physical process.

  • 208.
    Adolph, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Akhunzyanovh, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Azevedo, C.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Baum, G.
    Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    CERN, CH-1211 Geneva 23, Switzerland.;CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bisplinghoff, J.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Boer, M.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Bordalo, P.
    Univ Lisbon, Inst Super Tecn, P-1699 Lisbon, Portugal.;LIP, P-1000149 Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Burtin, E.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Capozza, L.
    Johannes Gutenberg Univ Mainz, Helmholtz Inst Strahlen & Kernphys, D-55099 Mainz, Germany.;CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Chang, W. -C
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA..
    Chung, S. U.
    Pusan Natl Univ, Dept Phys, Busan 609735, South Korea.;Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Ferrero, A.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Gerassimov, S.
    PN Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Grabmueller, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Grosse-Perdekamp, M.
    Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Hashimoto, R.
    Yamagata Univ, Yamagata 9928510, Japan..
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Hinterberger, F.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Horikawa, N.
    Chubu Univ, Kasugai, Aichi 4878501, Japan.;Nagoya Univ, Nagoya, Aichi 464, Japan..
    d'Hose, N.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Yu
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ishimoto, S.
    KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.;Yamagata Univ, Yamagata 9928510, Japan..
    Ivanov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jahn, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Khaustov, G. V.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia.;Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Kolosov, V. N.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    PN Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kremser, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kuchinski, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kunne, F.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Levillain, M.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Makins, N.
    Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marchand, C.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan..
    Meshcheryakov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Meyer, W.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Michigami, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Mikhailov, Yu. V.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nagel, T.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Nikolaenko, V. I.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Platchkov, S.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany.;Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    Univ Lisbon, Inst Super Tecn, P-1699 Lisbon, Portugal.;LIP, P-1000149 Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA..
    Rocco, E.
    CERN, CH-1211 Geneva 23, Switzerland..
    Rossiyskaya, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ryabchikov, D. I.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Samoylenko, V. D.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Schopferer, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Shevchenko, O. Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sozzi, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Chubu Univ, Kasugai, Aichi 4878501, Japan.;Yamagata Univ, Yamagata 9928510, Japan..
    Szabelski, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    CEA IRFU SPhN Saclay, F-91191 Gif Sur Yvette, France..
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    PN Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Windmolders, R.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavertyaev, M.
    PN Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    The spin structure function g(1)(p) of the proton and a test of the Bjorken sum rule2016In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 753, p. 18-28Article in journal (Refereed)
    Abstract [en]

    New results for the double spin asymmetry A(1)(p) and the proton longitudinal spin structure function g(1)(p) are presented. They were obtained by the COMPASS Collaboration using polarised 200 GeV muons scattered off a longitudinally polarised NH3 target. The data were collected in 2011 and complement those recorded in 2007 at 160 GeV, in particular at lower values of x. They improve the statistical precision of g(1)(p)(x) by about a factor of two in the region x less than or similar to 0.02. A next-to-leading order QCD fit to the g(1) world data is performed. It leads to a new determination of the quark spin contribution to the nucleon spin, Delta Sigma, ranging from 0.26 to 0.36, and to a re-evaluation of the first moment of g(1)(p). The uncertainty of Delta Sigma is mostly due to the large uncertainty in the present determinations of the gluon helicity distribution. A new evaluation of the Bjorken sum rule based on the COMPASS results for the non-singlet structure function g(1)(NS) (x, Q(2)) yields as ratio of the axial and vector coupling constants vertical bar gA/gV vertical bar = 1.22 +/- 0.05 (stat.) +/- 0.10 (syst.), which validates the sum rule to an accuracy of about 9%.

  • 209.
    Adolphi, C.
    et al.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Aghasyan, M.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Amoroso, A.
    LIP, P-1000149 Lisbon, Portugal.;Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Anosov, V.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bisplinghoff, J.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Boer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Bordalo, P.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany.;LIP, P-1000149 Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Braun, C.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Choia, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Duic, V.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy..
    Duennweber, W.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Eyrich, W.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hoheneschen, N. du Fresne
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Grabmueller, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Hashimoto, R.
    Yamagata Univ, Yamagata 9928510, Japan..
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Hinterberger, F.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    d'Hosev, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jahn, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Joergj, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Klimaszewski, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kolosov, V. N.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kremserj, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Lednev, A. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia.;Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA..
    Lehmann, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lian, Y. -S
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marchand, C.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan..
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Michigami, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Mikhailov, Yu. V.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Montuenga, P.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Nikolaenko, V. I.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    Univ Piemonte Orientale, I-15100 Alessandria, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Ryabchikov, D. I.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Samoylenko, V. D.
    Kurchatov Inst, Natl Res Ctr, State Sci Ctr, Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Schopferer, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Shevchenko, O. Yu.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia.;Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Smolik, J.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Sozzi, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Szabelski, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takekawa, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thibaud, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavada, P.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna, Moscow Region, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zink, A.
    Univ Erlangen Nurnberg, Phys Inst, D-91054 Erlangen, Germany..
    Exclusive omega meson muoproduction on transversely polarised protons2017In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 915, p. 454-475Article in journal (Refereed)
    Abstract [en]

    Exclusive production of omega mesons was studied at the COMPASS experiment by scattering 160GeV/c muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured in the range of photon virtuality 1(GeV/c)(2) < Q(2) < 10(GeV/c)(2), Bjorken scaling variable 0.003 < xBj < 0.3 and transverse momentum squared of the omega meson 0.05(GeV/c)(2) < p(T)(2) < 0.5(GeV/c)(2). The measured asymmetries are sensitive to the nucleon helicity-flip Generalised Parton Distributions (GPD) Et hat are related to the orbital angular momentum of quarks, the chiral-odd GPDs H-T that are related to the transversity Parton Distribution Functions, and the sign of the pi omega transition form factor. The results are compared to recent calculations of a GPD-based model.

  • 210.
    Aghasyan, M.
    et al.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Akhunzyanov, R.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Alexeev, G. D.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Anfimov, N. V.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Anosov, V.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Antoshkin, A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Augsten, K.
    Joint Inst Nucl Res, Moscow 141980, Russia.;Czech Tech Univ, Prague 16636, Czech Republic..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Buchele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Cchang, W. -C
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Dasgupta, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.;Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Duennweber, W.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelectr, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Moscow 141980, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Hamar, G.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Ludwig Maximilians Univ Munchen, Munich, Germany..
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;Natl Cent Univ, Dept Phys, 300 Jhongda Rd, Jhongli 32001, Taiwan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Ivanshin, Yu.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Kisselev, Yu.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kolosov, V. N.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Kral, Z.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kremser, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelectr, PL-00665 Warsaw, Poland..
    Kveton, A.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Lednev, A. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Lian, Y. -S
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelectr, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.;Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan..
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Mikhailov, Yu. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Mitrofanov, E.
    Mitrofanov, N.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nagaytsev, A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    INFN, Torino Sect, I-10125 Turin, Italy.;Univ Piemonte Orientale, I-15100 Alessandria, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Rogacheva, N. S.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Roskot, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Ryabchikov, D. I.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.;Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Rybnikov, A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelectr, PL-00665 Warsaw, Poland..
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Samoylenko, V. D.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Selyunin, A.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Shevchenko, O. Yu.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Smolik, J.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Sulc, M.
    Techn Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan.;Ludwig Maximilians Univ Munchen, Munich, Germany..
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Takewaka, S.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Tasevsky, M.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Terca, G.
    LIP, P-1000149 Lisbon, Portugal..
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy..
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Tomsa, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Vit, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Vondra, J.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelectr, PL-00665 Warsaw, Poland..
    Zavada, P.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Zhuravlev, N.
    Joint Inst Nucl Res, Moscow 141980, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelectr, PL-00665 Warsaw, Poland..
    First Measurement of Transverse-Spin-Dependent Azimuthal Asymmetries in the Drell-Yan Process2017In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 119, no 11, article id 112002Article in journal (Refereed)
    Abstract [en]

    The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use the CERN SPS 190 GeV/c pi(-) beam and a transversely polarized ammonia target. Three azimuthal asymmetries giving access to different transverse-momentum-dependent (TMD) parton distribution functions (PDFs) are extracted using dimuon events with invariant mass between 4.3 GeV/c(2) and 8.5 GeV/c(2). Within the experimental uncertainties, the observed sign of the Sivers asymmetry is found to be consistent with the fundamental prediction of quantum chromodynamics (QCD) that the Sivers TMD PDFs extracted from DY have a sign opposite to the one extracted from semi-inclusive deep-inelastic scattering (SIDIS) data. We present two other asymmetries originating from the pion Boer-Mulders TMD PDFs convoluted with either the nucleon transversity or pretzelosity TMD PDFs. A recent COMPASS SIDIS measurement was obtained at a hard scale comparable to that of these DY results. This opens the way for possible tests of fundamental QCD universality predictions.

  • 211.
    Aghasyan, M.
    et al.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Akhunzyanov, R.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Andrieux, V.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Antoshkin, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Russia;Czech Tech Univ, Prague 16636, Czech Republic.
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland.
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Bedfer, Y.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland.
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Bordalo, P.
    LIP, P-1649003 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Burtsev, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Chumakov, A. G.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chung, S. -U
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Denisov, O. Yu.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Donskov, S. V.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan.
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Duennweber, W.
    Dusaev, R. R.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Franco, C.
    LIP, P-1649003 Lisbon, Portugal.
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Russia;CERN, CH-1211 Geneva 23, Switzerland.
    Fuchey, E.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Gridin, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Hamar, G.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    d'Hose, N.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan;KEK, 1-1 Oho, Oho, Ibaraki 3050801, Japan.
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Ivanshin, Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan.
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Khaustov, G. V.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Khokhlov, Yu. A.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia.
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kolosov, V. N.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan.
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Konstantinov, V. F.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Kotzinian, A. M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Kral, Z.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kremser, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kunne, F.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Kuznetsov, I. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Kveton, A.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Lednev, A. A.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Levchenko, E. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Levillain, M.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Lian, Y. -S
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Lyubovitskij, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia;Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany.
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makke, N.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland.
    Mamon, S. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic;Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan.
    Matsuda, T.
    Miyazaki Univ, Miyazaki 8892192, Japan.
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Meyer, M.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Mikhailov, Yu. V.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Neyret, D.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nunes, A. S.
    LIP, P-1649003 Lisbon, Portugal.
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Panzieri, D.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy;Univ Piemonte Orientale, I-15100 Alessandria, Italy.
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peskova, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany;Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Platchkov, S.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Polyakov, V. A.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany.
    Quaresma, M.
    LIP, P-1649003 Lisbon, Portugal.
    Quintans, C.
    LIP, P-1649003 Lisbon, Portugal.
    Ramos, S.
    LIP, P-1649003 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Rogacheva, N. S.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Ryabchikov, D. I.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Samoylenko, V. D.
    Kurchatov Inst, NRC, IHEP, Protvino 142281, Russia.
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland.
    Seder, E.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Silva, L.
    LIP, P-1649003 Lisbon, Portugal.
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic.
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Stolarski, M.
    LIP, P-1649003 Lisbon, Portugal.
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic.
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Tomsa, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Vasilishin, B. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland.
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Vidon, A.
    Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France.
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Zhuravlev, N.
    Joint Inst Nucl Res, Dubna 141980, Russia.
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Search for muoproduction of X(3872) at COMPASS and indication of a new state (X)over-tilde(3872)2018In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 783, p. 334-340Article in journal (Refereed)
    Abstract [en]

    We have searched for exclusive production of exotic charmonia in the reaction mu N+ -> mu(+)(J/psi pi(+)pi(-))pi N-+/-' using COMPASS data collected with incoming muons of 160 GeV/c and 200 GeV/c momentum. In the J/psi pi(vertical bar)pi mass distribution we observe a signal with a statistical significance of 4.1 sigma. Its mass and width are consistent with those of the X(3872). The shape of the pi(+)pi(-) mass distribution from the observed decay into J/psi pi(+)pi(-) shows disagreement with previous observations for X(3872). The observed signal may be interpreted as a possible evidence of a new charmonium state. It could be associated with a neutral partner of X(3872) with C=-1 predicted by a tetraquark model. The product of cross section and branching fraction of the decay of the observed state into J/psi pi(+)pi(-) is determined to be 71 +/- 28(stat)+/- 39(syst) pb.

  • 212.
    Aghasyan, M.
    et al.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Andrieux, V
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Anfimov, N. , V
    Anosov, V
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Antoshkin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Czech Tech Univ, Prague 16636, Czech Republic.
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland.
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland.
    Birsa, R.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Burtsev, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chang, W-C
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Choi, I
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Chumakov, A. G.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chung, S-U
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Pusan Natl Univ, Dept Phys, Busan 609735, South Korea;Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
    Cicuttin, A.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Crespo, M. L.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Dalla Torre, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Denisov, O. Yu
    INFN, Torino Sect, I-10125 Turin, Italy.
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Donskov, S. , V
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan.
    Dreisbach, Ch
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Duennweber, W.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Dusaev, R. R.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Faessler, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal.
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Frolov, V
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;CERN, CH-1211 Geneva 23, Switzerland.
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Gnesi, I
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Gridin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Haas, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Hamar, G.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Hsieh, C-Y
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan;Natl Cent Univ, Dept Phys, 300 Jhongda Rd, Jhongli 32001, Taiwan.
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan.
    Jary, V
    Czech Tech Univ, Prague 16636, Czech Republic.
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Juraskova, K.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Khaustov, G. , V
    Khokhlov, Yu A.
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia.
    Kisselev, Yu
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kolosov, V. N.
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan.
    Konorov, I
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Konstantinov, V. F.
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Kotzinian, A. M.
    INFN, Torino Sect, I-10125 Turin, Italy;Yerevan Phys Inst, Alikhanian Br St, Yerevan 0036, Armenia.
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kral, Z.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kroumchtein, Z. , V
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Kurjata, R. R.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Kuznetsov, I. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Kveton, A.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Lednev, A. A.
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Levchenko, E. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Levorato, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Lian, Y-S
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan;Natl Kaohsiung Normal Univ, Dept Phys, Kaohsiung 824, Taiwan.
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Lyubovitskij, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makke, N.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland.
    Mamon, S. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic;Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan.
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan.
    Meshcheryakov, G. , V
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    MiKhailov, Yu, V
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan.
    Moretti, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Novy, J.
    Czech Tech Univ, Prague 16636, Czech Republic;NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Nowak, W-D
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal.
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Orlov, I
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Panzieri, D.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Piemonte Orientale, I-15100 Alessandria, Italy.
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Peng, J-C
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peskova, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peshekhonov, D. , V
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Polyakov, V. A.
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany.
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal.
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal.
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Rogacheva, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ryabchikov, D. , I
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Samoylenko, V. D.
    NRC Kurchatov Inst, IHEP, Protvino 142281, Russia.
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Santos, C.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schlueter, T.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Schmeing, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland.
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal.
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic.
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal.
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic.
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Tessaro, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Tessarotto, F.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Tomsa, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Tskhay, V
    Lebedev Phys Inst, Moscow 119991, Russia.
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Vasilishin, B. , I
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland.
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Vidon, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Light isovector resonances in pi(-) p -> pi(-) pi(-) pi(+)p at 190 GeV/c2018In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 98, no 9, article id UNSP 092003Article in journal (Refereed)
    Abstract [en]

    We have performed the most comprehensive resonance-model fit of pi(-)pi(-)pi(+) states using the results of our previously published partial-wave analysis (PWA) of a large data set of diffractive-dissociation events from the reaction pi(-) + p -> pi(-)pi(-)pi(+) +p(recoil) with a 190 GeV/c pion beam. The PWA results, which were obtained in 100 bins of three-pion mass, 0.5 < m(3 pi) < 2.5 GeV/c(2), and simultaneously in 11 bins of the reduced four-momentum transfer squared, 0.1 < t'< 1.0 (GeV/c)(2), are subjected to a resonance-model fit using Breit-Wigner amplitudes to simultaneously describe a subset of 14 selected waves using 11 isovector light-meson states with J(PC) = 0(-+), 1(++), 2(++), 2(-+), 4(++), and spin-exotic 1(-+) quantum numbers. The model contains the well-known resonances pi(1800), a(1)(1260), a(2)(1320), pi(2)(1670), pi(2)(1880), and a(4) (2040). In addition, it includes the disputed pi(1)(1600), the excited states a(1)(1640), a2(1700), and pi(2) (2005), as well as the resonancelike a(1)(1420). We measure the resonance parameters mass and width of these objects by combining the information from the PWA results obtained in the 11 t' bins. We extract the relative branching fractions of the rho(770)pi and f(2)(1270)pi decays of a(2)(1320) and a(4)(2040), where the former one is measured for the first time. In a novel approach, we extract the t' dependence of the intensity of the resonances and of their phases. The t' dependence of the intensities of most resonances differs distinctly from the t' dependence of the nonresonant components. For the first time, we determine the t' dependence of the phases of the production amplitudes and confirm that the production mechanism of the Pomeron exchange is common to all resonances. We have performed extensive systematic studies on the model dependence and correlations of the measured physical parameters.

  • 213.
    Aghasyan, M.
    et al.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy..
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Andrieux, V.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Antoshkin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Czech Tech Univ, Prague 16636, Czech Republic..
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland..
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland..
    Birsa, R.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Buechele, M.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Burtsev, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Capozza, L.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Chumakov, A. G.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Chung, S. -U
    Cicuttin, A.
    INFN, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Crespo, M. L.
    INFN, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Curiel, Q.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Dalla Torre, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Denisov, O. Yu.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Donskov, S. V.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan..
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Duennweber, W.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Dusaev, R. R.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Faessler, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Fischer, H.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal..
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland.;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;CERN, CH-1211 Geneva 23, Switzerland..
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Gnesi, I.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Gorzellik, M.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Gridin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Grussenmeyer, T.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Hamar, G.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Heinsius, F. H.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Herrmann, F.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan.;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan..
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan..
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Joerg, P.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Khaustov, G. V.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Khokhlov, Yu. A.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia..
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kolosov, V. N.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan..
    Koenigsmann, K.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Konstantinov, V. F.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Kotzinian, A. M.
    INFN, Torino Sect, I-10125 Turin, Italy.;Yerevan Phys Inst, Alikhanian Br St, Yerevan 0036, Armenia..
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kral, Z.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kremser, P.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Kuznetsov, I. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Kveton, A.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Lednev, A. A.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Levchenko, E. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Levorato, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Lian, Y. -S
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel..
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Lyubovitskij, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Makke, N.
    INFN, Trieste Sect, I-34127 Trieste, Italy.;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy..
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland..
    Mamon, S. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.;Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan..
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan..
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.;Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Mikhailov, Yu. V.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan..
    Moretti, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan..
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal..
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Panzieri, D.
    INFN, Torino Sect, I-10125 Turin, Italy.;Univ Piemonte Orientale, I-15100 Alessandria, Italy..
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.;INFN, Torino Sect, I-10125 Turin, Italy..
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peskova, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Polyakov, V. A.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal..
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal..
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal.;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal..
    Regali, C.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany..
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA..
    Rogacheva, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ryabchikov, D. I.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.;Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Samoylenko, V. D.
    Natl Res Ctr, Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia..
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Santos, C.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan..
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy..
    Schmidt, K.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland..
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal..
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India..
    Sirtl, S.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic..
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland.;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal..
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland.;Czech Tech Univ, Prague 16636, Czech Republic..
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic..
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan.;Chubu Univ, Kasugai, Aichi 4878501, Japan..
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.;INFN, Trieste Sect, I-34127 Trieste, Italy.;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Szameitat, T.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland..
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Tessaro, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Tessarotto, F.
    INFN, Trieste Sect, I-34127 Trieste, Italy..
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany..
    Tomsa, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic..
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy..
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Vasilishin, B. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia..
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland..
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal..
    Vidon, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France..
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic..
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany..
    ter Wolbeek, J.
    Univ Freiberg, Phys Inst, D-79104 Freiburg, Germany..
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia..
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland..
    Transverse-momentum-dependent multiplicities of charged hadrons in muon-deuteron deep inelastic scattering2018In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 97, no 3, article id 032006Article in journal (Refereed)
    Abstract [en]

    A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaboration at CERN. The following kinematic domain is covered by the data: photon virtuality Q(2) > 1 (GeV/c)(2), invariant mass of the hadronic system W > 5 (GeV/c)(2), Bjorken scaling variable in the range 0.003 < x < 0.4, fraction of the virtual photon energy carried by the hadron in the range 0.2 < z < 0.8, and square of the hadron transverse momentum with respect to the virtual photon direction in the range 0.02 (GeV/c)(2) < P-hT(2) < 3 (GeV/c)(2). The multiplicities are presented as a function of P-hT(2) in three-dimensional bins of x, Q(2), z and compared to previous semi-inclusive measurements. We explore the small-P-hT(2) region, i.e. P-hT(2) < 1 (GeV/c)(2), where hadron transverse momenta are expected to arise from nonperturbative effects, and also the domain of larger P-hT(2), where contributions from higher-order perturbative QCD are expected to dominate. The multiplicities are fitted using a single-exponential function at small P-hT(2) to study the dependence of the average transverse momentum < P-hT(2)> on x, Q(2) and z. The power-law behavior of the multiplicities at large P-hT(2) is investigated using various functional forms. The fits describe the data reasonably well over the full measured range.

  • 214.
    Aghasyan, M.
    et al.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Alexeev, M. G.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Amoroso, A.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Andrieux, V.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Anfimov, N. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Anosov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Antoshkin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Czech Tech Univ, Prague 16636, Czech Republic.
    Augustyniak, W.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Austregesilo, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland.
    Balestra, F.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Beck, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland.
    Birsa, R.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Bordalo, P.
    LIP, P-1000149 Lisbon, Portugal;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Burtsev, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Capozza, L.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Chang, W. -C
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Chiosso, M.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Choi, I.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Chumakov, A. G.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chung, S. -U
    Cicuttin, A.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Crespo, M. L.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Torre, S. Dalla
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Denisov, O. Yu.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Donskov, S. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan.
    Dreisbach, Ch.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Duennweber, W.
    Dusaev, R. R.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Eversheim, P. D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal.
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Friedrich, J. M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Frolov, V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;CERN, CH-1211 Geneva 23, Switzerland.
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Giordano, F.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Gnesi, I.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Grasso, A.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Gridin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Grube, B.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Grussenmeyerh, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Hamar, G.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Heinsius, F. H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Hsieh, C. -Y
    Huber, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.
    Ivanov, A.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan.
    Jary, V.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Joerg, P.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Kabuss, E.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Khaustov, G. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Khokhlov, Yu. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia;Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia.
    Kisselev, Yu.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kolosov, V. N.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan.
    Koenigsmann, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Konorov, I.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Konstantinov, V. F.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Kotzinian, A. M.
    INFN, Torino Sect, I-10125 Turin, Italy;Yerevan Phys Inst, Alikhanian Br St, Yerevan 0036, Armenia.
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kral, Z.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Kraemer, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kremser, R.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Krinner, F.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Kroumchtein, Z. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Kuznetsov, I. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Kveton, A.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Lednev, A. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Levchenko, E. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Levorato, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Lian, Y. -S
    Lichtenstadt, J.
    Longo, R.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Lyubovitskij, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia;Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany.
    Maggiora, A.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makke, N.
    INFN, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland.
    Mamon, S. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic;Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan.
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan.
    Meshcheryakov, G. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Mikhailov, Yu. V.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan.
    Moretti, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Nowak, W. -D
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal.
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Orlov, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Panzieri, D.
    INFN, Torino Sect, I-10125 Turin, Italy;Univ Piemonte Orientale, I-15100 Alessandria, Italy.
    Parsamyan, B.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel;Univ Turin, Dept Phys, I-10125 Turin, Italy;INFN, Torino Sect, I-10125 Turin, Italy.
    Paul, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Peng, J. -C
    Pereira, F.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Peskova, M.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Peshekhonov, D. V.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Polyakov, V. A.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany.
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal.
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal.
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Rogacheva, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ryabchikov, D. I.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany;Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Samoylenko, V. D.
    Natl Res Ctr Kurchatov Inst, State Sci Ctr Inst High Energy Phys, Protvino 142281, Russia.
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Santos, C.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Sawada, T.
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schiavon, P.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy.
    Schmidt, K.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Schönning, Karin
    CERN, CH-1211 Geneva 23, Switzerland.
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal.
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Srnka, A.
    AS CR, Inst Sci Instruments, Brno 61264, Czech Republic.
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal.
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic.
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;INFN, Trieste Sect, I-34127 Trieste, Italy;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Sznajder, P.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Tessaro, S.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Tessarotto, F.
    INFN, Trieste Sect, I-34127 Trieste, Italy.
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Tomsa, J.
    Charles Univ Prague, Fac Math & Phys, CR-18000 Prague, Czech Republic.
    Tosello, F.
    INFN, Torino Sect, I-10125 Turin, Italy.
    Tskhay, V.
    Lebedev Phys Inst, Moscow 119991, Russia;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Uhl, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Vasilishin, B. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland.
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Vidon, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Wallner, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany.
    Weisrock, T.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Windmolders, R.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zavada, P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Longitudinal double-spin asymmetry A(1)(p) and spin-dependent structure function g(1)(p) of the proton at small values of x and Q(2)2018In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 781, p. 464-472Article in journal (Refereed)
    Abstract [en]

    We present a precise measurement of the proton longitudinal double-spin asymmetry A(1)(p) and the proton spin-dependent structure function g(1)(P) at photon virtualities 0.006 (GeV/c)(2) < Q(2) < 1 (GeV/c)(2) in the Bjorken x range of 4 x 10(-5) < x < 4 x 10(-2). The results are based on data collected by the COMPASS Collaboration at CERN using muon beam energies of 160 GeV and 200 GeV. The statistical precision is more than tenfold better than that of the previous measurement in this region. In the whole range of x, the measured values of A(1)(p) and g(1)(P) are found to be positive. It is for the first time that spin effects are found at such low values of x.

  • 215.
    Akhunzyanov, R.
    et al.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Alexeev, M. G.
    Univ Turin, Dept Phys, I-10125 Turin, Italy.
    Alexeev, G. D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Amoroso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Andrieux, V
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Anfimov, N. , V
    Anosov, V
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Antoshkin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Augsten, K.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Czech Tech Univ, Prague 16636, Czech Republic.
    Augustyniak, W.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal;Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Austregesilo, A.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Azevedo, C. D. R.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Badelek, B.
    Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland.
    Balestra, F.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Ball, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Barth, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Beck, R.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Bedfer, Y.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Bernhard, J.
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Bicker, K.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Bielert, E. R.
    CERN, CH-1211 Geneva 23, Switzerland.
    Birsa, R.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Bodlak, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Bordalo, R.
    LIP, P-1000149 Lisbon, Portugal;Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Bradamante, F.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Bressan, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Buechele, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Burtin, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Burtsev, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chang, W-c
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Chatterjee, C.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Chiosso, M.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Choi, I
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Chumakov, A. G.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Chung, S-u
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany;Pusan Natl Univ, Dept Phys, Busan 609735, South Korea;Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA.
    Cicuttin, A.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Crespo, M. L.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Dalla Torre, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Dasgupta, S. S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Dasgupta, S.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Denisov, O. Yu
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Dhara, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Donskov, S. , V
    Doshita, N.
    Yamagata Univ, Yamagata 9928510, Japan.
    Dreisbach, Ch
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Duennweber, W.
    Dusaev, R. R.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Dziewiecki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Efremov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Eversheim, D.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Faessler, M.
    Ferrero, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Finger, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Finger, M., Jr.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Fischer, H.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Franco, C.
    LIP, P-1000149 Lisbon, Portugal.
    von Hohenesche, N. du Fresne
    CERN, CH-1211 Geneva 23, Switzerland;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Friedrich, J. M.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Frolov, V
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;CERN, CH-1211 Geneva 23, Switzerland.
    Fuchey, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Connecticut, Storrs, CT 06269 USA.
    Gautheron, F.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Gavrichtchouk, O. P.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Gerassimov, S.
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Giarra, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Gnesi, I
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Gorzellik, M.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Grasso, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Gridin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Perdekamp, M. Grosse
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Grube, B.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Grussenmeyer, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Guskov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Hahne, D.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Hamar, G.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    von Harrach, D.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Heitz, R.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Herrmann, F.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Horikawa, N.
    Nagoya Univ, Nagoya, Aichi 464, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    d'Hose, N.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Hsieh, C-y
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan;Natl Cent Univ, Dept Phys, 300 Jhongda Rd, Jhongli 32001, Taiwan.
    Huber, S.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Ishimoto, S.
    Yamagata Univ, Yamagata 9928510, Japan;KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.
    Ivanov, A.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Ivanshin, Yu
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Iwata, T.
    Yamagata Univ, Yamagata 9928510, Japan.
    Jary, V
    Czech Tech Univ, Prague 16636, Czech Republic.
    Joosten, R.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Joerg, R.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany;Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Juraskova, K.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Kabuss, E.
    Univ Lisbon, Inst Super Tecn, Lisbon, Portugal.
    Kerbizi, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Ketzer, B.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Khaustov, G. , V
    Khokhlov, Yu A.
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia;Moscow Inst Phys & Technol, Moscow 141700, Moscow Region, Russia.
    Kisselev, Yu
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Klein, F.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Koivuniemi, J. H.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kolosov, N.
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia.
    Kondo, K.
    Yamagata Univ, Yamagata 9928510, Japan.
    Konorov, I
    Lebedev Phys Inst, Moscow 119991, Russia;Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Konstantinov, V. F.
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia.
    Kotzinian, A. M.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy;Yerevan Phys Inst, Alikhanian Br St, Yerevan 0036, Armenia.
    Kouznetsov, O. M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Kral, Z.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Kraemer, M.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Krinner, F.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Kroumchtein, Z. , V
    Kulinich, Y.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Kunne, F.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Kurek, K.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Kurjata, R. P.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Kuznetsov, I. I.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Kveton, A.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Lednev, A. A.
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia.
    Levchenko, E. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Levillain, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Levorato, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Lian, Y. S.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan;Natl Kaohsiung Normal Univ, Dept Phys, Kaohsiung 824, Kaohsiung Count, Taiwan.
    Lichtenstadt, J.
    Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
    Longo, R.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Lyubovitskij, V. E.
    Tomsk Polytech Univ, Tomsk 634050, Russia;Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany.
    Maggiora, A.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Magnon, A.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makins, N.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Makke, N.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
    Mallot, G. K.
    CERN, CH-1211 Geneva 23, Switzerland.
    Mamon, S. A.
    Tomsk Polytech Univ, Tomsk 634050, Russia.
    Marianski, B.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Martin, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Marzec, J.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Matousek, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic;Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Matsuda, H.
    Yamagata Univ, Yamagata 9928510, Japan.
    Matsuda, T.
    Univ Miyazaki, Miyazaki 8892192, Japan.
    Meshcheryakov, G. , V
    Meyer, M.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France;Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Meyer, W.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Mikhailov, Yu, V
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia.
    Mikhasenko, M.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Mitrofanov, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Mitrofanov, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Miyachi, Y.
    Yamagata Univ, Yamagata 9928510, Japan.
    Moretti, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy.
    Nagaytsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Neyret, D.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Novy, J.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Nowak, W-d
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Nukazuka, G.
    Yamagata Univ, Yamagata 9928510, Japan.
    Nunes, A. S.
    LIP, P-1000149 Lisbon, Portugal.
    Olshevsky, A. G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Orlov, I
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ostrick, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Panzieriz, D.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy;Univ Eastern Piedmt, I-15100 Alessandria, Italy.
    Parsamyan, B.
    Univ Turin, Dept Phys, I-10125 Turin, Italy;Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Paul, S.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Peng, J-C
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Pereira, F.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Pesek, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peskova, M.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Peshekhonov, D. , V
    Pierre, N.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany;Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Platchkov, S.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Pochodzalla, J.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Polyakov, V. A.
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia.
    Pretz, J.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany;Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany.
    Quaresma, M.
    LIP, P-1000149 Lisbon, Portugal.
    Quintans, C.
    LIP, P-1000149 Lisbon, Portugal.
    Ramos, S.
    LIP, P-1000149 Lisbon, Portugal;Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Regali, C.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Reicherz, G.
    Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany.
    Riedl, C.
    Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
    Rogacheva, N. S.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ryabchikov, D. , I
    Rybnikov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Rychter, A.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Salac, R.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Samoylenko, V. D.
    Natl Res Ctr, State Sci Ctr Inst High Energy Phys, Kurchatov Inst, Protvino 142281, Russia.
    Sandacz, A.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Santos, C.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Sarkar, S.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Savin, I. A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Sawada, T.
    Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
    Sbrizzai, G.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Schiavon, R.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Schmieden, H.
    Univ Bonn, Phys Inst, D-53115 Bonn, Germany.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. CERN, CH-1211 Geneva 23, Switzerland.
    Seder, E.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Selyunin, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Silva, L.
    LIP, P-1000149 Lisbon, Portugal.
    Sinha, L.
    Matrivani Inst Expt Res & Educ, Kolkata 700030, W Bengal, India.
    Sirtl, S.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Slunecka, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Smolik, J.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Srnka, A.
    Inst Sci Instruments AS CR, Brno 61264, Czech Republic.
    Steffen, D.
    CERN, CH-1211 Geneva 23, Switzerland;Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Stolarski, M.
    LIP, P-1000149 Lisbon, Portugal.
    Subrt, O.
    CERN, CH-1211 Geneva 23, Switzerland;Czech Tech Univ, Prague 16636, Czech Republic.
    Sulc, M.
    Tech Univ Liberec, Liberec 46117, Czech Republic.
    Suzuki, H.
    Yamagata Univ, Yamagata 9928510, Japan;Chubu Univ, Kasugai, Aichi 4878501, Japan.
    Szabelski, A.
    Univ Trieste, Dept Phys, I-34127 Trieste, Italy;Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy;Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Szameitat, T.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Sznajder, R.
    Natl Ctr Nucl Res, PL-00681 Warsaw, Poland.
    Tasevsky, M.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Tessaro, S.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Tessarotto, F.
    Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy.
    Thiel, A.
    Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.
    Tomsa, J.
    Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic.
    Tosello, F.
    Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy.
    Tskhay, V
    Lebedev Phys Inst, Moscow 119991, Russia.
    Uhl, S.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Vasilishin, B. , I
    Vauth, A.
    CERN, CH-1211 Geneva 23, Switzerland.
    Veit, B. M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    Veloso, J.
    Univ Aveiro, Dept Phys, P-3810193 Aveiro, Portugal.
    Vidon, A.
    Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France.
    Virius, M.
    Czech Tech Univ, Prague 16636, Czech Republic.
    Wallner, S.
    Tech Univ Manchen, Phys Dept, D-85748 Garching, Germany.
    Wilfert, M.
    Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
    ter Wolbeek, J.
    Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany.
    Zaremba, K.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Zavada, R.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zavertyaev, M.
    Lebedev Phys Inst, Moscow 119991, Russia.
    Zemlyanichkina, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Zhuravlev, N.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ziembicki, M.
    Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland.
    Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section2019In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 793, p. 188-194Article in journal (Refereed)
    Abstract [en]

    We report on the first measurement of exclusive single-photon muoproduction on the proton by COMPASS using 160 GeV/c polarised mu(+) and mu(-) beams of the CERN SPS impinging on a liquid hydrogen target. We determine the dependence of the average of the measured mu(+) and mu(-) cross sections for deeply virtual Compton scattering on the squared four-momentum transfer t from the initial to the final proton. The slope B of the t-dependence is fitted with a single exponential function, which yields B = (4.3 +/- 0.6(stat) (+0.1)(-0.3)vertical bar(sys)) (GeV/c)(-2). This result can be converted into a transverse extension of partons in the proton,root(r(perpendicular to)(2)) = (0.58 +/- 0.04(stat) (+0.01)(-0.02)vertical bar(sys) +/- 0.04(model)) fm. For this measurement, the average virtuality of the photon mediating the interaction is < Q(2)> = 1.8 (GeV/c)(2) and the average value of the Bjorken variable is < X-Bj > = 0.056.

  • 216.
    Albrecht, Malte
    et al.
    Ruhr Univ., Bochum, Germany.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    The Forward Endcap of the Electromagnetic Calorimeter for the PANDA Detector at FAIR2015In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 587, no 1, article id 012050Article in journal (Refereed)
    Abstract [en]

    The versatile 4π-detector PANDA will be built at the Facility for Antiproton and Ion Research (FAIR), an accelerator complex, currently under construction near Darmstadt, Germany. A cooled antiproton beam in a momentum range of 1.5 – 15GeV/c will be provided by the High Energy Storage Ring (HESR). All measurements at PANDA rely on an excellent performance of the detector with respect to tracking, particle identification and energy measurement. The electromagnetic calorimeter (EMC) of the PANDA detector will be equipped with 15744 PbWO(4) crystals (PWO-II), which will be operated at a temperature of – 25° C in order to increase the light output. The design of the forward endcap of the EMC has been finalized. The crystals will be read out with Large Area Avalanche Photo Diodes (LAAPDs) in the outer regions and with Vacuum Photo Tetrodes (VPTTs) in the innermost part. Production of photosensor units utilizing charge integrating preamplifiers has begun. A prototype comprised of 216 PbWO4 crystals has been built and tested at various accelerators (CERN SPS, ELSA/Bonn, MAMI/Mainz), where the crystals have been exposed to electron and photon beams of 25MeV up to 15GeV. The results of these test measurements regarding the energy and position resolution are presented.

  • 217.
    Atomassa, Ermias
    et al.
    IPN, Orsay, France.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    Feasibility studies for nucleon structure measurements with PANDA2014In: EPJ Web of Conferences, ISSN 2101-6275, E-ISSN 2100-014X, Vol. 81, article id 06001Article in journal (Refereed)
    Abstract [en]

    The study of nucleon structure is one of the main physics goals of PANDA to be built at the FAIR accelerator complex. The excellent particle identification performance of the PANDA detector will enable measurements of exclusive channels p&#772; p -> e^+e^- and p&#772; p -> pi^0 J/psi -> pi^0e^+e^- to extract the electromagnetic form factors of protons and pi-nucleon Transition Distribution Amplitudes (pi-N TDAs). After a brief description of the PANDA apparatus and a method to handle momentum resolution degradation due to Bremsstrahlung, the physics of pi-N TDAs is discussed. An estimate for the expected signal to background ratio for p&#772; p -> pi^0 J/psi -> pi^0e^+e^- that takes into account the main background source is given.

  • 218. Bargholtz, Chr.
    et al.
    Bashkanov, M.
    Berlowski, M.
    Bondar, A.
    Bogoslawsky, D.
    Brodowski, W.
    Brudvik, J.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Capellaro, Filippo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Chilingarov, A.
    Clement, H.
    Comfort, J.
    Demiroers, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Fridén, Carl-Johan
    Uppsala University, The Svedberg Laboratory.
    Geren, L.
    Gornov, M.
    Grebenev, V.
    Greiff, J.
    Gurov, Y.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jiganov, E.
    Johansson, A.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, S.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Khakimova, O.
    Khoukaz, A.
    Kilian, K.
    Kimura, N.
    Koch, I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kolachev, G.
    Kren, F.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kuzmin, A.
    Kuznetsov, A.
    Lindberg, K.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Meier, R.
    Messner, O.
    Morosov, B.
    Nawrot, A.
    Nefkens, B. M. K.
    Norman, G.
    Uppsala University, The Svedberg Laboratory.
    Oelert, W.
    Pauly, C.
    Pettersson, H.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Pivovarov, A.
    Patzold, J.
    Petukhov, Y.
    Povtorejko, A.
    Reistad, Dag
    Uppsala University, The Svedberg Laboratory.
    Ruber, Roger J. M. Y.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Sandukovsky, S.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Scobel, W.
    Sefzick, T.
    Shafigullin, R.
    Shwartz, B.
    Sidorov, V.
    Skorodko, T.
    Sopov, V.
    Starostin, A.
    Stepaniak, J.
    Sukhanov, A.
    Sukhanov, A.
    Tchernyshev, V.
    Tegner, P-E
    Engblom, P. Thorngren
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tikhomirov, V.
    Toki, H.
    Turowiecki, A.
    Wagner, G. J.
    Wiedner, Ulrich
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Wilhelmi, Z.
    Wolke, M.
    Yamamoto, A.
    Yamaoka, H.
    Zabierowski, J.
    Zartova, I.
    Zlomanczuk, Josef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    The WASA detector facility at CELSIUS2008In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 594, no 3, p. 339-350Article in journal (Refereed)
    Abstract [en]

    The WASA 4 pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is presented. A unique feature of the system is the use of hydrogen pellets as internal targets for the first time. A detailed description of the design, together with the anticipated and achieved performance parameters are given. (C) 2008 Elsevier B.V. All rights reserved.

  • 219. Bargholtz, Chr.
    et al.
    Bashkanov, M.
    Bogoslawsky, D.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Cappellaro, F.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Clement, H.
    Demiroers, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell E.
    Uppsala University, The Svedberg Laboratory.
    Gerén, L.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jiganov, E.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, S. Negasi
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Koch, I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kullander, Sven O.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Kuznetsov, A.
    Laukhin, I. V.
    Lindberg, K.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Morosov, B.
    Oelert, W.
    Pauly, C.
    Pettersson, Hanna I.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Petukhov, Y.
    Povtorejko, A.
    Ruber, Roger J. M. Y.
    Uppsala University, The Svedberg Laboratory.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Scobel, W.
    Shafigullin, R.
    Shwartz, B.
    Skorodko, T.
    Sopov, V.
    Stepaniak, J.
    Tchernyshev, V.
    Tegner, P. -E
    Thörngren-Engblom, P.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tikhomirov, V.
    Turowiecki, A.
    Wagner, G. J.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Yamamoto, A.
    Zabierowski, J.
    Zartova, I.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Measurement of the eta -> pi(+)pi(-)e(+)e(-) decay branching ratio2007In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 644, no 5-6, p. 299-303Article in journal (Refereed)
    Abstract [en]

    The reaction pd -> He-3 eta at threshold was used to provide a clean source of eta mesons for decay studies with the WASA detector at CELSIUS. The branching ratio of the decay eta -> pi(+)pi(-)e(+)e(-) is measured to be (4.3 +/- 1.3 +/- 0.4) x 10(-4).

  • 220. Barucca, G.
    et al.
    Martin, A.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Akram, Adeel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Andersson, Walter Ikegami
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Papenbrock, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Regina, Jenny
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, J.
    Precision resonance energy scans with the PANDA experiment at FAIR: Sensitivity study for width and line shape measurements of the X(3872)2019In: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 55, no 3, article id 42Article in journal (Refereed)
    Abstract [en]

    This paper summarises a comprehensive Monte Carlo simulation study for precision resonance energy scan measurements. Apart from the proof of principle for natural width and line shape measurements of very narrow resonances with PANDA, the achievable sensitivities are quantified for the concrete example of the charmonium-like X(3872) state discussed to be exotic, and for a larger parameter space of various assumed signal cross-sections, input widths and luminosity combinations. PANDA is the only experiment that will be able to perform precision resonance energy scans of such narrow states with quantum numbers of spin and parities that differ from JPC=1--.

  • 221. Bashkanov, M.
    et al.
    Bogoslawsky, D.
    Calén, Hans
    Uppsala University, The Svedberg Laboratory.
    Capellaro, Filippo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Clement, H.
    Demirörs, L.
    Ekström, Curt
    Uppsala University, The Svedberg Laboratory.
    Fransson, Kjell
    Uppsala University, The Svedberg Laboratory.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Ivanov, G.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jiganov, E.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, Samson
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Koch, Inken
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear and Particle Physics.
    Kullander, Sven
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Kupsc, Andrzej
    Uppsala University, The Svedberg Laboratory.
    Kuznetsov, A.
    Marciniewski, Pawel
    Uppsala University, The Svedberg Laboratory.
    Meier, R.
    Morosov, B.
    Oelert, W.
    Pauly, C.
    Petukhov, Y.
    Pettersson, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Povtorejko, A.
    Ruber, Roger J. M. Y.
    Uppsala University, The Svedberg Laboratory.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Scobel, W.
    Skorodko, T.
    Shwartz, B.
    Sopov, V.
    Stepaniak, J.
    Tchernyshev, V.
    Thörngren Engblom, Pia
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Tikhomirov, V.
    Turowiecki, A.
    Wagner, G.J.
    Wiedner, Ulrich
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Yamamoto, A.
    Zabierowski, J.
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Measurement of the slope parameter for the η → 3π0 decay in the pp → ppη reaction2007In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 76, no 4, p. 048201-Article in journal (Refereed)
    Abstract [en]

    The CELSIUS-WASA setup is used to measure the 3π0 decay of η mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter α yielding α = −0.026 ± 0.010(stat) ± 0.010(syst). This value is compared to recent experimental results and theoretical predictions.

  • 222.
    Boca, Gianlugi
    et al.
    INFN & Univ, Pavia, Italy.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    The PANDA experiment: physics goals and experimental setup2014In: EPJ Web of Conferences, ISSN 2101-6275, E-ISSN 2100-014X, Vol. 72, article id 00002Article in journal (Refereed)
  • 223.
    Boca, Gianluigi
    et al.
    INFN, Pavia & Pavia Univ., Italy.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    The experiment PANDA: physics with antiprotons at FAIR2015In: EPJ Web of Conferences, ISSN 2101-6275, E-ISSN 2100-014X, Vol. 95, article id 01001Article in journal (Refereed)
    Abstract [en]

    PANDA is an experiment that will run at the future facility FAIR, Darmstadt, Germany. A high intensity and cooled antiproton beam will collide on a fixed hydrogen or nuclear target covering center-of-mass energies between 2.2 and 5.5 GeV. PANDA addresses various physics aspects from the low energy non-perturbative region towards the perturbative regime of QCD. With the impressive theoretical developments in this field, e.g. lattice QCD, the predictions are becoming more accurate in the course of time. The data harvest with PANDA will, therefore, be an ideal test bench with the aim to provide a deeper understanding of hadronic phenomena such as confinement and the generation of hadron masses. A variety of physics topics will be covered with PANDA, for example: the formation or production of exotic non-qqbar charm meson states connected to the recently observed XYZ spectrum; the study of gluon-rich matter, such as glueballs and hybrids; the spectroscopy of the excited states of strange and charm baryons, their production cross section and their spin correlations; the behaviour of hadrons in nuclear matter; the hypernuclear physics; the electromagnetic proton form factors in the timelike region.

  • 224.
    Bremer, Daniel
    et al.
    JLU Giessen Univ., Giessen, Germany.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    Performance of prototypes for the PANDA barrel EMC2015In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 587, no 1, article id 012052Article in journal (Refereed)
    Abstract [en]

    The PANDA experiment will be part of the future Facility for Antiproton and Ion Research (FAIR) and aims for the study of strong interaction within the charm sector via antiproton proton collisions up to antiproton momenta of 15 GeV/c. Reflecting the variety of the physics program the PANDA detector is designed as a multi-purpose detector able to perform tracking, calorimetry and particle identification with nearly complete coverage of the solid angle. The Electromagnetic Calorimeter (EMC) contained inside its Target Spectrometer is based on cooled PbWO(4) scintillator crystals. In order to ensure an excellent performance throughout the large dynamic range of photon/electron energies ranging from a few MeV up to 15 GeV an extensive prototyping phase is mandatory. This contribution describes the measured response of the EMC barrel part prototype PROTO60 at the largest design energy to secondary beams provided by the SPS at CERN. In addition to PROTO60 a tracking station was deployed, providing precise position information of the 15 GeV/c positrons. For calibration purposes a 150 GeV/c muon beam and cosmic radiation, in combination with estimations from GEANT4 simulations were used. The obtained performance concerning energy, position and time information is presented.

  • 225.
    Calen, Hans
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Petterson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schonning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thorngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Evidence for a 'Narrow' Roper Resonance - The Breathing Mode of the Nucleon2006Report (Other scientific)
  • 226.
    Calen, Hans
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Petterson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schonning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thorngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Measurement of the eta->pi+ pi- e+ e- decay branching ration2006Report (Other scientific)
  • 227.
    Calen, Hans
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Gustafsson, Leif
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Hoistad, Bo
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Jacewicz, Marek
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Keleta, Samson
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kullander, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Petterson, Henrik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Schonning, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Thorngren, Pia
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Zlomanczuk, Jozef
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Department of Physics and Astronomy, Nuclear Physics.
    Two-Pion Production in Nucleon-Nucleon Collisions and the ABC Effect - Approaching a Puzzle by Exclusive and Kinematically Complete Measurements2006Report (Other (popular scientific, debate etc.))
  • 228.
    Calén, Hans
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Gustafsson, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Höistad, Bo
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Jacewicz, Marek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Keleta, Samson
    Kullander, Sven
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Petterson, Henrik
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Thörngren Engblom, Pia
    Zlomanczuk, Jozef
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics.
    Measurement of η meson decays into lepton-antilepton pairs2007Report (Other academic)
    Abstract [en]

    A search for rare lepton decays of the η meson was performed using the WASA detector at CELSIUS. Two candidates for double Dalitz decay η→e+e−e+e− events are reported with a background of 1.3±0.2 events. This allows to set an upper limit to the branching ratio of 9.7×10−5 η(90% CL). The branching ratio for the decay η→e+e−γ is determined to (7.8±0.5stat ±0.8syst)×10−3 in agreement with world average value. An upper limit (90% CL) for the branching ratio for the η→e+e− decay is 2.7 × 10−5 and a limit for the sum of the η→μ+μ−μ+μ− and η→π+π−μ+μ− decays is 3.6 × 10−4.

  • 229.
    Destefanis, Marco
    et al.
    INFN & Univ, Turin, Italy.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    Spin studies via Drell-Yan processes at PANDA2014In: EPJ Web of Conferences, ISSN 2101-6275, E-ISSN 2100-014X, Vol. 73, article id 02012Article in journal (Refereed)
    Abstract [en]

    The nucleon structure is still not completely understood. A transverse momentum dependent description of the nucleon structure is a crucial milestone for several forthcoming studies in a wide range of experimental scenarios. By means of antiproton beams, possibly polarized in a later stage of the project, with a beam momentum up to 15 GeV/c, which will be available at the future FAIR facility, the nonperturbative region of QCD is planned to be investigated. One of the main goals of the forthcoming experiments at FAIR is the study of Drell-Yan lepton pairs by means of proton-antiproton annihilations, taking also advantage of the expected high luminosity. The Drell-Yan production is a unique tool to access the spin dependent properties of the nucleon, and in particular its transverse degrees of freedom. Transverse Momentum Dependent (TMD) Parton Distribution Functions (PDFs), i.e. the Boer-Mulders function, the Sivers function, and the Transversity, could be deeply investigated by means of experimental angular asymmetries. In later stages of FAIR, single- and double-spin asymmetries could be investigated as well. The Drell-Yan physics program which could be accessed at FAIR with the PANDA experiment will be discussed in details, in the light of existing results in the field.

  • 230.
    Fioravanti, Elisa
    et al.
    INFN, Ferrarra, Italy.
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    Experimental overview of the PANDA experiment2014In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 503, article id 012030Article in journal (Refereed)
    Abstract [en]

    The physics program of the (anti-Proton ANhiliation ar DArmstadt) experiment will address various questions related to the strong interactions by employing a multi-purpose detector system at the High Energy Storage Ring (HESR) for anti-protons of the upcoming Facility for Anti-proton and Ion Research (FAIR). The excellent antiproton beam resolution of Δp/p ~ 10−5 and the high luminosity =2×1032cm−2 s−1 will allow the precise measurement of the charmonium and open charm spectroscopy, the search for exotic hadrons like multiquarks, glueballs and hybrids, the study of in-medium modifications of hadrons and the nucleon structure.

  • 231.
    Garzia, Isabella
    et al.
    INFN Ferrara.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Li, Cui
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zou, J.H.
    IHEP, Beijing, China.
    Recent results, status and prospects for the BESIII experiment2015In: J.Phys.Conf.Ser., 2015, Vol. 631Conference paper (Refereed)
  • 232.
    Iazzi, Felice
    et al.
    INFN & Polytechnico Turin, Italy .
    Caldeira Balkeståhl, Li
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Calén, Hans
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Fransson, Kjell
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Marciniewski, Pawel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Zmeskal, Johann
    ÖAW, Wien, Austria.
    Doubly strange system physics with antiprotons at PANDA2014In: EPJ Web of Conferences, ISSN 2101-6275, E-ISSN 2100-014X, Vol. 71, article id 00056Article in journal (Refereed)
    Abstract [en]

    The study of the doubly strange hyper-systems represents a step forward in understanding the unexplored world of the strange matter in the frame of a better knowledge of the hyperon-nucleon and hyperon-nucleus interaction. The production of double hyper-systems, up to now, have been based on the use of kaon beams through a double strangeness exchange reaction. A new technique has been designed by the PANDA Collaboration, which will use the antiprotons at 3 GeV/c of the HESR facility at FAIR to create doubly strange hyperons and drive them into nuclear targets. This technique requires the use of 2 targets, located inside and outside the beam pipe. In spite of the constraints arising from the presence of a solid target inside an antiproton ring, the technique looks promising in terms of rate of hyperons and hyper-nuclei produced. After a review of the physics items that will be investigated in the hyper-nuclear section of PANDA experiment, the characteristics of the antiprotons facility, the results of the feasibility study of the 2-target technique, the design of the hyper-nuclear set-up in PANDA and the expected rates of the double hyper-nuclei will be presented.

  • 233.
    Jackura, A.
    et al.
    Indiana Univ, Phys Dept, Bloomington, IN 47405 USA;Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47403 USA.