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  • 101.
    Ablikim, M.
    et al.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Achasov, M. N.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Ahmed, S.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Albrecht, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Amoroso, A.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.;Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Nankai Univ, Tianjin 300071, Peoples R China.;Shandong Univ, Jinan 250100, Shandong, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China.;Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    An, F. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    An, Q.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Bai, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Bakina, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Ferroli, R. Baldini
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Ban, Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Bennett, D. W.
    Indiana Univ, Bloomington, IN 47405 USA..
    Bennett, J. V.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Berger, N.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Bertani, M.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Bettoni, D.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Bian, J. M.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Bianchi, F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Boger, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia..
    Boyko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Briere, R. A.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Cai, H.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Cai, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Cakir, O.
    Ankara Univ, TR-06100 Ankara, Turkey..
    Calcaterra, A.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Cao, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Cetin, S. A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey..
    Chai, J.
    Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Chang, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Chelkov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia.;Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia..
    Chen, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Chen, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, M. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Chen, S. J.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Chen, X. R.
    Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China..
    Chen, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Chu, X. K.
    Peking Univ, Beijing 100871, Peoples R China..
    Cibinetto, G.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Dai, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Dai, J. P.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China.;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China.;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China.;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China..
    Dbeyssi, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Dedovich, D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Deng, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Denig, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Denysenko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Destefanis, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    De Mori, F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Ding, Y.
    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China..
    Dong, C.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Dong, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Dong, L. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Dong, M. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Dorjkhaidav, O.
    Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongol Peo Rep..
    Dou, Z. L.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Du, S. X.
    Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China..
    Duan, P. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Fang, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Fang, X.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Fang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Farinelli, R.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy.;Univ Ferrara, I-44122 Ferrara, Italy..
    Fava, L.
    Univ Piemonte Orientale, I-15121 Alessandria, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Fegan, S.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Feldbauer, F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Felici, G.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Feng, C. Q.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Fioravanti, E.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Fritsch, M.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Fu, C. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, X. L.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Gao, Y.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Gao, Y. G.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China..
    Gao, Z.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Garzia, I.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Goetzen, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Gong, L.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Gong, W. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Gradl, W.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Greco, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Gu, M. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Gu, S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Gu, Y. T.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Guo, A. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, L. B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Guo, R. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y. P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Haddadi, Z.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Hafner, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Han, S.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Hao, X. Q.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Harris, F. A.
    Univ Hawaii, Honolulu, HI 96822 USA..
    He, K. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    He, X. Q.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China..
    Heinsius, F. H.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Held, T.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Heng, Y. K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Holtmann, T.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Hou, Z. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, C.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Hu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Hu, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Hu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Huang, G. S.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Huang, J. S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Huang, X. T.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Huang, X. Z.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Huang, Z. L.
    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China..
    Hussain, T.
    Univ Punjab, Lahore 54590, Pakistan..
    Andersson, Walter Ikegami
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ji, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, Q. P.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Ji, X. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Ji, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Jiang, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Jiang, X. Y.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Jiao, J. B.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Jiao, Z.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Jin, D. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Jin, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Julin, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Minnesota, Minneapolis, MN 55455 USA..
    Kalantar-Nayestanaki, N.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Kang, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Kang, X. S.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Kavatsyuk, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Ke, B. C.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Khan, T.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Kiese, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kliemt, R.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Kloss, B.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Koch, L.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Kolcu, O. B.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey.;Istanbul Arel Univ, TR-34295 Istanbul, Turkey..
    Kopf, B.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Kornicer, M.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Kuemmel, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Kuhlmann, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kuhn, W.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Lange, J. S.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Lara, M.
    Indiana Univ, Bloomington, IN 47405 USA..
    Larin, P.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Lavezzi, L.
    Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Leithoff, H.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Leng, C.
    Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Li, Cui
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Li, Cheng
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Li, D. M.
    Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China..
    Li, F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Li, F. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Li, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, H. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, Jin
    Seoul Natl Univ, Seoul 151747, South Korea..
    Li, Kang
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China..
    Li, Ke
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Li, Lei
    Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China..
    Li, P. L.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Li, P. R.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, Q. Y.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Li, T.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Li, W. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, W. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, X. L.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Li, X. N.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Li, X. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Li, Z. B.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Liang, H.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Liang, Y. F.
    Sichuan Univ, Chengdu 610064, Sichuan, Peoples R China..
    Liang, Y. T.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Liao, G. R.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Lin, D. X.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Liu, B.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China.;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China.;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China.;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China..
    Liu, B. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, C. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, D.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Liu, F. H.
    Shanxi Univ, Taiyuan 030006, Shanxi, Peoples R China..
    Liu, Fang
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Feng
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China..
    Liu, H. B.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Liu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Liu, Huanhuan
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Huihui
    Henan Univ Sci & Technol, Luoyang 471003, Peoples R China..
    Liu, J. B.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Liu, J. P.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Liu, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, K.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Liu, K. Y.
    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China..
    Liu, Ke
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China..
    Liu, L. D.
    Peking Univ, Beijing 100871, Peoples R China..
    Liu, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Liu, Q.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Liu, S. B.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Liu, X.
    Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China..
    Liu, Y. B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Liu, Y. Y.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Liu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Liu, Zhiqing
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Long, Y. F.
    Peking Univ, Beijing 100871, Peoples R China..
    Lou, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Lu, H. J.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Lu, J. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Lu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, Y. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Luo, C. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Luo, M. X.
    Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China..
    Luo, T.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Luo, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Lyu, X. R.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Ma, F. C.
    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China..
    Ma, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, L. L.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Ma, M. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, Q. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, X. N.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ma, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Ma, Y. M.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Maas, F. E.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Maggiora, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Malik, Q. A.
    Univ Punjab, Lahore 54590, Pakistan..
    Mao, Y. J.
    Peking Univ, Beijing 100871, Peoples R China..
    Mao, Z. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Marcello, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Messchendorp, J. G.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Mezzadri, G.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Min, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Min, T. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Mitchell, R. E.
    Indiana Univ, Bloomington, IN 47405 USA..
    Mo, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Mo, Y. J.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China..
    Morales, C. Morales
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Morello, G.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Muchnoi, N. Yu.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia..
    Muramatsu, H.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Musiol, P.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Mustafa, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Nefedov, Y.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Nikolaev, I. B.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Ning, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Nisar, S.
    COMSATS Inst Informat Technol, Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan..
    Niu, S. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Niu, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Olsen, S. L.
    Seoul Natl Univ, Seoul 151747, South Korea..
    Ouyang, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Pacetti, S.
    Ist Nazl Fis Nucl, I-06100 Perugia, Italy.;Univ Perugia, I-06100 Perugia, Italy..
    Pan, Y.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Papenbrock, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Patteri, P.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Pelizaeus, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Pellegrino, J.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Peng, H. P.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Peters, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.;Goethe Univ Frankfurt, D-60323 Frankfurt, Germany..
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ping, J. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Ping, R. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Poling, R.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Prasad, V.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Qi, H. R.
    Beihang Univ, Beijing 100191, Peoples R China..
    Qi, M.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Qian, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Qiao, C. F.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Qin, J. J.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Qin, N.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Qin, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qin, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Qiu, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rashid, K. H.
    Univ Punjab, Lahore 54590, Pakistan.;Govt Coll Women Univ, Sialkot Punjab 51310, Pakistan..
    Redmer, C. F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Richter, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Ripka, M.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Rong, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Rosner, Ch.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Ruan, X. D.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Sarantsev, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;PNPI, NRC Kurchatov Inst, Gatchina 188300, Russia..
    Savrie, M.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Schnier, C.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Shan, W.
    Peking Univ, Beijing 100871, Peoples R China..
    Shao, M.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Shen, C. P.
    Beihang Univ, Beijing 100191, Peoples R China..
    Shen, P. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Shen, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Sheng, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, J. J.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Song, W. M.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Song, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sosio, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Sowa, C.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Spataro, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Sun, G. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, J. F.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Sun, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Sun, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Y. J.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Sun, Y. K.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Sun, Y. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Z. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Sun, Z. T.
    Indiana Univ, Bloomington, IN 47405 USA..
    Tang, C. J.
    Sichuan Univ, Chengdu 610064, Sichuan, Peoples R China..
    Tang, G. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Tang, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Tapan, I.
    Uludag Univ, TR-16059 Bursa, Turkey..
    Tiemens, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Tsednee, B. T.
    Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongol Peo Rep..
    Uman, I.
    Near East Univ, Nicosia, Cyprus..
    Varner, G. S.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Wang, B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, B. L.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Wang, D.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, D. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, Dan
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Wang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Wang, L. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, L. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, M.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Wang, P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, W. P.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Wang, X. F.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Wang, Y.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Wang, Y. D.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wang, Y. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Wang, Y. Q.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wang, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Wang, Z. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Wang, Z. H.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Wang, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, Zongyuan
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Weber, T.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wei, D. H.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Wei, J. H.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Weidenkaff, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wen, S. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wiedner, U.
    Ruhr Univ Bochum, D-44780 Bochum, Germany..
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wu, L. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, L. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Xia, L.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Xia, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Xiao, D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiao, H.
    Univ South China, Hengyang 421001, Peoples R China..
    Xiao, Y. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiao, Z. J.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Xie, Y. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Xie, Y. H.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China..
    Xiong, X. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiu, Q. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Xu, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, Q. J.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China..
    Xu, Q. N.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Xu, X. P.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Yan, L.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Yan, W. B.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Yan, W. C.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Yan, Y. H.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Yang, H. J.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China.;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China.;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China.;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China..
    Yang, H. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yang, L.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Yang, Y. H.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Yang, Y. X.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Ye, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Ye, M. H.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China..
    Yin, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    You, Z. Y.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Yu, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Yu, C. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Yu, J. S.
    Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China..
    Yuan, C. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Yuan, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuncu, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey.;Bogazici Univ, TR-34342 Istanbul, Turkey..
    Zafar, A. A.
    Univ Punjab, Lahore 54590, Pakistan..
    Zeng, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Zeng, Z.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhang, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, B. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhang, C. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, D. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, H. H.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Zhang, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, L.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Zhang, S. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhang, X. Y.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Zhang, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhang, Y. T.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhang, Yang
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, Yao
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, Yu
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Z. H.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China..
    Zhang, Z. P.
    Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhang, Z. Y.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Zhao, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhao, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhao, Lei
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhao, Ling
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, M. G.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, S. J.
    Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China..
    Zhao, T. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhao, Z. G.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhemchugov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia..
    Zheng, B.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Univ South China, Hengyang 421001, Peoples R China..
    Zheng, J. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zheng, W. J.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China..
    Zheng, Y. H.
    Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhong, B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Zhou, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zhou, X.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China..
    Zhou, X. K.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhou, X. R.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhou, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhou, Y. X.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Zhu, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhu, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, S. H.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China..
    Zhu, X. L.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Zhu, Y. C.
    State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China.;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China..
    Zhu, Y. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhuang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Hefei 100049, Anhui, Peoples R China..
    Zotti, L.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Zou, B. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zou, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Search for ψ(3686)→γηc(η(1405))→γπ+ππ02017In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 96, no 11, article id 112008Article in journal (Refereed)
    Abstract [en]

    Using a sample of 448.1×106  ψ(3686) events collected with the BESIII detector, a search for the isospin violating decay ηcπ+ππ0 via ψ(3686)→γηc is presented. No signal is observed, and the upper limit on B(ψ(3686)→γηcB(ηcπ+ππ0) is determined to be 1.6×10−6 at the 90% confidence level. In addition, a search for η(1405)→f0(980)π0 in ψ(3686) radiative decays is performed. No signal is observed, and the branching fraction B(ψ(3686)→γη(1405))×B(η(1405)→f0(980)π0B(f0(980)→π+π−) is calculated to be less than 5.0×10−7 at the 90% confidence level.

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    Ablikim, M.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    RAS, BINP, SB, GI Budker Inst Nucl Phys, Novosibirsk 630090, Russia;Novosibirsk State Univ, Novosibirsk 630090, Russia.
    Ahmed, S.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Albrecht, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Amoroso, A.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    An, F. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    An, Q.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
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    Southeast Univ, Nanjing 211100, Jiangsu, Peoples R China.
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    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
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    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
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    Peking Univ, Beijing 100871, Peoples R China.
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    Indiana Univ, Bloomington, IN 47405 USA.
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    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Bettoni, D.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Bian, J. M.
    Univ Minnesota, Minneapolis, MN 55455 USA.
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    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
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    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia.
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    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
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    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
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    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Cakir, O.
    Ankara Univ, TR-06100 Ankara, Turkey.
    Calcaterra, A.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Cao, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Cetin, S. A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey.
    Chai, J.
    INFN, I-10125 Turin, Italy.
    Chang, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
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    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia;Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia;PNPI, NRC Kurchatov Inst, Gatchina 188300, Russia.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Chen, M. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Chen, P. L.
    Univ South China, Hengyang 421001, Peoples R China.
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    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
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    Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China.
    Chen, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Chen, Z. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Chu, X. K.
    Peking Univ, Beijing 100871, Peoples R China.
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    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Dai, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Dai, J. P.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China.
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    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
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    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
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    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
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    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China.
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    Nankai Univ, Tianjin 300071, Peoples R China.
    Dong, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Dong, L. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Dong, M. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
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    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
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    Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Fang, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Fang, X.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    INFN, Sez Ferrara, I-44122 Ferrara, Italy;Univ Ferrara, I-44122 Ferrara, Italy.
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    Univ Piemonte Orientale, I-15121 Alessandria, Italy;INFN, I-10125 Turin, Italy.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Feng, C. Q.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
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    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
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    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
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    Tsinghua Univ, Beijing 100084, Peoples R China.
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    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
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    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
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    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
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    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.
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    Nankai Univ, Tianjin 300071, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Gu, M. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
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    Henan Normal Univ, Xinxiang 453007, Peoples R China.
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    Guangxi Univ, Nanning 530004, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
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    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
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    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
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    Henan Normal Univ, Xinxiang 453007, Peoples R China.
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    Univ Hawaii, Honolulu, HI 96822 USA.
    He, K. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    He, X. Q.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China.
    Heinsius, F. H.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Held, T.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Heng, Y. K.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Holtmann, T.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Hou, Z. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
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    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Hu, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Hu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Huang, G. S.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
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    Henan Normal Univ, Xinxiang 453007, Peoples R China.
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    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
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    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
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    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China.
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    Univ Punjab, Lahore 54590, Pakistan.
    Andersson, Walter Ikegami
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ji, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ji, Q. P.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Ji, X. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Jiang, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Jiang, X. Y.
    Nankai Univ, Tianjin 300071, Peoples R China.
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    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Jiao, Z.
    Huangshan Coll, Huangshan 245000, Peoples R China.
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    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Jin, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Jin, Y.
    Univ Jinan, Jinan 250022, Shandong, Peoples R China.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Julin, A.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Kalantar-Nayestanaki, N.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Kang, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Kang, X. S.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Kavatsyuk, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Ke, B. C.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
    Khan, T.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Khoukaz, A.
    Univ Munster, Wilhelm Klemm Str 9, D-48149 Munster, Germany.
    Kiese, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Kliemt, R.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.
    Koch, L.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
    Kolcu, O. B.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey;Istanbul Arel Univ, TR-34295 Istanbul, Turkey.
    Kopf, B.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
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    Univ Hawaii, Honolulu, HI 96822 USA.
    Kuemmel, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Kuessner, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
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    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kuehn, W.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
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    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
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    Indiana Univ, Bloomington, IN 47405 USA.
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    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Lavezzi, L.
    INFN, I-10125 Turin, Italy.
    Leiber, S.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
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    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Leng, C.
    INFN, I-10125 Turin, Italy.
    Li, Cui
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Li, Cheng
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Li, D. M.
    Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China.
    Li, F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Li, F. Y.
    Peking Univ, Beijing 100871, Peoples R China.
    Li, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Li, H. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, H. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Li, K. J.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Li, Kang
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China.
    Li, Ke
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Li, Lei
    Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
    Li, P. L.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Li, P. R.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, Q. Y.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Li, T.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Li, W. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, W. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Li, X. L.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Li, X. N.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Li, X. Q.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Li, Z. B.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Liang, H.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liang, Y. F.
    Sichuan Univ, Chengdu 610064, Sichuan, Peoples R China.
    Liang, Y. T.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
    Liao, G. R.
    Guangxi Normal Univ, Guilin 541004, Peoples R China.
    Lin, D. X.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Liu, B.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China.
    Liu, B. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, C. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, D.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liu, F. H.
    Shanxi Univ, Taiyuan 030006, Shanxi, Peoples R China.
    Liu, Fang
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, Feng
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Liu, H. B.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Liu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, Huanhuan
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, Huihui
    Henan Univ Sci & Technol, Luoyang 471003, Peoples R China.
    Liu, J. B.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liu, J. P.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
    Liu, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, K.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Liu, K. Y.
    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China.
    Liu, Ke
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Liu, L. D.
    Peking Univ, Beijing 100871, Peoples R China.
    Liu, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Liu, Q.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, S. B.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liu, X.
    Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China.
    Liu, Y. B.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Liu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, Zhiqing
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Long, Y. F.
    Peking Univ, Beijing 100871, Peoples R China.
    Lou, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Lu, H. J.
    Huangshan Coll, Huangshan 245000, Peoples R China.
    Lu, J. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Lu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Lu, Y. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Luo, C. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Luo, M. X.
    Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China.
    Luo, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Lyu, X. R.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ma, F. C.
    Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China.
    Ma, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ma, L. L.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Ma, M. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ma, Q. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ma, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ma, X. N.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Ma, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Ma, Y. M.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Maas, F. E.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Maggiora, M.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Malik, Q. A.
    Univ Punjab, Lahore 54590, Pakistan.
    Mao, Y. J.
    Peking Univ, Beijing 100871, Peoples R China.
    Mao, Z. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Marcello, S.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Meng, Z. X.
    Univ Jinan, Jinan 250022, Shandong, Peoples R China.
    Messchendorp, J. G.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Mezzadri, G.
    Univ Ferrara, I-44122 Ferrara, Italy.
    Min, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Min, T. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Mitchell, R. E.
    Indiana Univ, Bloomington, IN 47405 USA.
    Mo, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Mo, Y. J.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Morales, C. Morales
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Morello, G.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Muchnoi, N. Yu.
    RAS, BINP, SB, GI Budker Inst Nucl Phys, Novosibirsk 630090, Russia;Novosibirsk State Univ, Novosibirsk 630090, Russia.
    Muramatsu, H.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Mustafa, A.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Nefedov, Y.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.
    Nikolaev, I. B.
    RAS, BINP, SB, GI Budker Inst Nucl Phys, Novosibirsk 630090, Russia;Novosibirsk State Univ, Novosibirsk 630090, Russia.
    Ning, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Nisar, S.
    COMSATS Inst Informat Technol, Def Rd,Raiwind Rd, Lahore 54000, Pakistan.
    Niu, S. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Niu, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Olsen, S. L.
    Seoul Natl Univ, Seoul 151747, South Korea;Inst for Basic Sci Korea, Ctr Underground Phys, Daejeon 34126, South Korea.
    Ouyang, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Pacetti, S.
    INFN, I-06100 Perugia, Italy;Univ Perugia, I-06100 Perugia, Italy.
    Pan, Y.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Papenbrock, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Patteri, P.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Pelizaeus, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Pellegrino, J.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Peng, H. P.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Peters, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany;Goethe Univ Frankfurt, D-60323 Frankfurt, Germany.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ping, J. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Ping, R. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Pitka, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Poling, R.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Prasad, V.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Qi, H. R.
    Beihang Univ, Beijing 100191, Peoples R China.
    Qi, M.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Qian, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Qiao, C. F.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Qin, N.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
    Qin, X. S.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Qin, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Qiu, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Rashid, K. H.
    Univ Punjab, Lahore 54590, Pakistan;Govt Coll Women Univ, Sialkot 51310, Punjab, Pakistan.
    Redmer, C. F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Richter, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Ripka, M.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Rolo, M.
    INFN, I-10125 Turin, Italy.
    Rong, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Rosner, Ch.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Ruan, X. D.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Sarantsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Savrie, M.
    Univ Ferrara, I-44122 Ferrara, Italy.
    Schnier, C.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Shan, W.
    Peking Univ, Beijing 100871, Peoples R China.
    Shao, M.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Shen, C. P.
    Beihang Univ, Beijing 100191, Peoples R China.
    Shen, P. X.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Shen, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Sheng, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Song, J. J.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Song, W. M.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Song, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sosio, S.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Sowa, C.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Spataro, S.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Sun, G. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sun, J. F.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Sun, L.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
    Sun, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Sun, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sun, Y. J.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Sun, Y. K.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Sun, Y. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sun, Z. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Sun, Z. T.
    Indiana Univ, Bloomington, IN 47405 USA.
    Tang, C. J.
    Sichuan Univ, Chengdu 610064, Sichuan, Peoples R China.
    Tang, G. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Tang, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Tapan, I.
    Uludag Univ, TR-16059 Bursa, Turkey.
    Tiemens, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Tsednee, B.
    Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongol Peo Rep.
    Uman, I.
    Near East Univ, Nicosia 10, North Cyprus, Turkey.
    Varner, G. S.
    Univ Hawaii, Honolulu, HI 96822 USA.
    Wang, B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, B. L.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, D.
    Peking Univ, Beijing 100871, Peoples R China.
    Wang, D. Y.
    Peking Univ, Beijing 100871, Peoples R China.
    Wang, Dan
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, L. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, L. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, M.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Wang, Meng
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, W. P.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Wang, X. F.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Wang, Y.
    Soochow Univ, Suzhou 215006, Peoples R China.
    Wang, Y. D.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wang, Y. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, Y. Q.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wang, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, Z. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, Z. Y.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Wang, Zongyuan
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Weber, T.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wei, D. H.
    Guangxi Normal Univ, Guilin 541004, Peoples R China.
    Weidenkaff, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wen, S. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wiedner, U.
    Bochum Ruhr Univ, D-44780 Bochum, Germany.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wu, L. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wu, L. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wu, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Xia, L.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Xia, X.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Xia, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China.
    Xiao, D.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Xiao, H.
    Univ South China, Hengyang 421001, Peoples R China.
    Xiao, Y. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xiao, Z. J.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Xie, Y. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Xie, Y. H.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Xiong, X. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xiu, Q. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Xu, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Xu, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xu, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Xu, Q. J.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China.
    Xu, Q. N.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xu, X. P.
    Soochow Univ, Suzhou 215006, Peoples R China.
    Yan, L.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Yan, W. B.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Yan, W. C.
    Beihang Univ, Beijing 100191, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Yan, Y. H.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China.
    Yang, H. J.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China.
    Yang, H. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Yang, L.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
    Yang, Y. H.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Yang, Y. X.
    Guangxi Normal Univ, Guilin 541004, Peoples R China.
    Yang, Yifan
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ye, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Ye, M. H.
    Yin, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    You, Z. Y.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Yu, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Yu, C. X.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Yu, J. S.
    Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China.
    Yuan, C. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Yuan, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Yuncu, A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey;Bogazici Univ, TR-34342 Istanbul, Turkey.
    Zafar, A. A.
    Univ Punjab, Lahore 54590, Pakistan.
    Zallo, A.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Zeng, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China.
    Zeng, Z.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhang, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, B. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhang, C. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, D. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, H. H.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Zhang, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, J. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, J. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, L.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Zhang, S. Q.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Zhang, X. Y.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Zhang, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhang, Y. T.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhang, Yang
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, Yao
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, Yu
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, Z. H.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Zhang, Z. P.
    Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhang, Z. Y.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
    Zhao, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhao, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhao, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhao, Lei
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhao, Ling
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, M. G.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Zhao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, S. J.
    Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China.
    Zhao, T. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhao, Z. G.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhemchugov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia.
    Zheng, B.
    Univ South China, Hengyang 421001, Peoples R China.
    Zheng, J. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zheng, W. J.
    Shandong Univ, Jinan 250100, Shandong, Peoples R China.
    Zheng, Y. H.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhong, B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Zhou, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhou, X.
    Wuhan Univ, Wuhan 430072, Hubei, Peoples R China.
    Zhou, X. K.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhou, X. R.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhou, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhou, Y. X.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Zhu, J.
    Nankai Univ, Tianjin 300071, Peoples R China;Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Zhu, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhu, K. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhu, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhu, S. H.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China.
    Zhu, X. L.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Zhu, Y. C.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhu, Y. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhuang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zou, B. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zou, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Amplitude analysis of the KSKS system produced in radiative J /psi decays2018In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 98, no 7, article id 072003Article in journal (Refereed)
    Abstract [en]

    An amplitude analysis of the KSKS system produced in radiative J/psi decays is performed using the (1310.6 +/- 7.0) x 10(6) nip decays collected by the BESIII detector. Two approaches are presented. A mass-dependent analysis is performed by parametrizing the KSKS invariant mass spectrum as a sum of Breit-aligner line shapes. Additionally, a mass-independent analysis is performed to extract a piecewise function that describes the dynamics of the KSKS system while making minimal assumptions about the properties and number of poles in the amplitude. The dominant amplitudes in the mass-dependent analysis include the f(0)(1710), f(0)(2200), and f(2)'(1525). The mass-independent results, which are made available as input for further studies, are consistent with those of the mass-dependent analysis and are useful for a systematic study of hadronic interactions. The branching fraction of radiative J/psi decays to KSKS is measured to be (8.1 +/- 0.4) x 10(-4), where the uncertainty is systematic and the statistical uncertainty is negligible.

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  • 103.
    Ablikim, M.
    et al.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Achasov, M. N.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia;Novosibirsk State Univ, Novosibirsk 630090, Russia.
    Ahmed, S.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Albrecht, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Amoroso, A.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    An, F. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    An, Q.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Bai, Y.
    Southeast Univ, Nanjing 211100, Jiangsu, Peoples R China.
    Bakina, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Ferroli, R. Baldini
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Ban, Y.
    Peking Univ, Beijing 100871, Peoples R China.
    Bennett, D. W.
    Indiana Univ, Bloomington, IN 47405 USA.
    Bennett, J. V.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
    Berger, N.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Bertani, M.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Bettoni, D.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Bian, J. M.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Bianchi, F.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Boger, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia.
    Boyko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Briere, R. A.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
    Cai, H.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Cai, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Cakir, O.
    Ankara Univ, TR-06100 Ankara, Turkey;Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey.
    Calcaterra, A.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Cao, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Cetin, S. A.
    Chai, J.
    INFN, I-10125 Turin, Italy.
    Chang, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Chelkov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia;Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
    Chen, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Chen, H. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Chen, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Chen, M. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Chen, P. L.
    Univ South China, Hengyang 421001, Peoples R China.
    Chen, S. J.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Chen, X. R.
    Lanzhou Univ, Lanzhou 730000, Peoples R China.
    Chen, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Chu, X. K.
    Peking Univ, Beijing 100871, Peoples R China.
    Cibinetto, G.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Dai, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Dai, J. P.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China.
    Dbeyssi, A.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Dedovich, D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Deng, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Denig, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Denysenko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Destefanis, M.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    De Mori, F.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Ding, Y.
    Liaoning Univ, Shenyang 110036, Peoples R China.
    Dong, C.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Dong, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Dong, L. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Dong, M. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Dou, Z. L.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Du, S. X.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China.
    Duan, P. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Fang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Fang, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Fang, X.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Fang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Farinelli, R.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy;Univ Ferrara, I-44122 Ferrara, Italy.
    Fava, L.
    Univ Piemonte Orientale, I-15121 Alessandria, Italy;INFN, I-10125 Turin, Italy.
    Fegan, S.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Feldbauer, F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Felici, G.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Feng, C. Q.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Fioravanti, E.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Fritsch, M.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Fu, C. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Gao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Gao, X. L.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Gao, Y.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Gao, Y. G.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Gao, Z.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Garzia, I.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Goetzen, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.
    Gong, L.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Gong, W. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Gradl, W.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Greco, M.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Gu, M. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Gu, S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Gu, Y. T.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Guo, A. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Guo, L. B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Guo, R. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Guo, Y. P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Haddadi, Z.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Han, S.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Hao, X. Q.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Harris, F. A.
    Univ Hawaii, Honolulu, HI 96822 USA.
    He, K. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    He, X. Q.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China.
    Heinsius, F. H.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Held, T.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Heng, Y. K.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Holtmann, T.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Hou, Z. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Hu, C.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Hu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Hu, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Hu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Huang, G. S.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Huang, J. S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Huang, X. T.
    Shandong Univ, Jinan 250100, Peoples R China.
    Huang, X. Z.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Huang, Z. L.
    Liaoning Univ, Shenyang 110036, Peoples R China.
    Hussain, T.
    Univ Punjab, Lahore 54590, Pakistan.
    Andersson, Walter Ikegami
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. Uppsala Univ, Box 516, SE-75120 Uppsala, Sweden.
    Ji, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ji, Q. P.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Ji, X. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ji, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Jiang, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Jiang, X. Y.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Jiao, J. B.
    Shandong Univ, Jinan 250100, Peoples R China.
    Jiao, Z.
    Huangshan Coll, Huangshan 245000, Peoples R China.
    Jin, D. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Jin, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Jin, Y.
    Univ Jinan, Jinan 250022, Peoples R China.
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Julin, A.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Kalantar-Nayestanaki, N.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Kang, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Kang, X. S.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Kavatsyuk, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Ke, B. C.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
    Khan, T.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Khoukaz, A.
    Univ Munster, Wilhelm Klemm St 9, D-48149 Munster, Germany.
    Kiese, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Kliemt, R.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.
    Koch, L.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
    Kolcu, O. B.
    Istanbul Arel Univ, TR-34295 Istanbul, Turkey.
    Kopf, B.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Kornicer, M.
    Univ Hawaii, Honolulu, HI 96822 USA.
    Kuemmel, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Kuessner, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Kuhlmann, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kuhn, W.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
    Lange, J. S.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
    Lara, M.
    Indiana Univ, Bloomington, IN 47405 USA.
    Larin, P.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Lavezzi, L.
    INFN, I-10125 Turin, Italy.
    Leiber, S.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Leithoff, H.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Leng, C.
    INFN, I-10125 Turin, Italy.
    Li, Cui
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Li, Cheng
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Li, D. M.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China.
    Li, F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Li, F. Y.
    Peking Univ, Beijing 100871, Peoples R China.
    Li, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Li, H. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, H. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Li, K. J.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Li, Kang
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China.
    Li, Ke
    Shandong Univ, Jinan 250100, Peoples R China.
    Li, Lei
    Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China.
    Li, P. L.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Li, P. R.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, Q. Y.
    Shandong Univ, Jinan 250100, Peoples R China.
    Li, T.
    Shandong Univ, Jinan 250100, Peoples R China.
    Li, W. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Li, W. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Li, X. L.
    Shandong Univ, Jinan 250100, Peoples R China.
    Li, X. N.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Li, X. Q.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Li, Z. B.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Liang, H.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liang, Y. F.
    Sichuan Univ, Chengdu 610064, Peoples R China.
    Liang, Y. T.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany.
    Liao, G. R.
    Guangxi Normal Univ, Guilin 541004, Peoples R China.
    Lin, D. X.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Liu, B.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China;Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China;Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China;Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China.
    Liu, B. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, C. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, D.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liu, F. H.
    Shanxi Univ, Taiyuan 030006, Peoples R China.
    Liu, Fang
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, Feng
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Liu, H. B.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Liu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, Huanhuan
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Liu, Huihui
    Henan Univ Sci & Technol, Luoyang 471003, Peoples R China.
    Liu, J. B.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liu, J. P.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Liu, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, K.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Liu, K. Y.
    Liaoning Univ, Shenyang 110036, Peoples R China.
    Liu, Ke
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Liu, L. D.
    Peking Univ, Beijing 100871, Peoples R China.
    Liu, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Liu, Q.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, S. B.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Liu, X.
    Lanzhou Univ, Lanzhou 730000, Peoples R China.
    Liu, Y. B.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Liu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Liu, Zhiqing
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Long, Y. F.
    Peking Univ, Beijing 100871, Peoples R China.
    Lou, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Lu, H. J.
    Huangshan Coll, Huangshan 245000, Peoples R China.
    Lu, J. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Lu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Lu, Y. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Luo, C. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Luo, M. X.
    Zhejiang Univ, Hangzhou 310027, Peoples R China.
    Luo, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Lyu, X. R.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ma, F. C.
    Liaoning Univ, Shenyang 110036, Peoples R China.
    Ma, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ma, L. L.
    Shandong Univ, Jinan 250100, Peoples R China.
    Ma, M. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ma, Q. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ma, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Ma, X. N.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Ma, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Ma, Y. M.
    Shandong Univ, Jinan 250100, Peoples R China.
    Maas, F. E.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Maggiora, M.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Malik, Q. A.
    Univ Punjab, Lahore 54590, Pakistan.
    Mao, Y. J.
    Peking Univ, Beijing 100871, Peoples R China.
    Mao, Z. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Marcello, S.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Meng, Z. X.
    Univ Jinan, Jinan 250022, Peoples R China.
    Messchendorp, J. G.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Mezzadri, G.
    INFN, Sez Ferrara, I-44122 Ferrara, Italy.
    Min, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Min, T. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Mitchell, R. E.
    Indiana Univ, Bloomington, IN 47405 USA.
    Mo, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Mo, Y. J.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Morales, C. Morales
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Morello, G.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Muchnoi, N. Yu.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia;Novosibirsk State Univ, Novosibirsk 630090, Russia.
    Muramatsu, H.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Mustafa, A.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Nefedov, Y.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
    Nerling, F.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.
    Nikolaev, I. B.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia;Novosibirsk State Univ, Novosibirsk 630090, Russia.
    Ning, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Nisar, S.
    COMSATS Inst Informat Technol, Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan.
    Niu, S. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Niu, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Olsen, S. L.
    Seoul Natl Univ, Seoul 151747, South Korea;Inst for Basic Sci Korea, Ctr Underground Phys, Daejeon 34126, South Korea.
    Ouyang, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Pacetti, S.
    INFN, I-06100 Perugia, Italy;Univ Perugia, I-06100 Perugia, Italy.
    Pan, Y.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Papenbrock, Michael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Patteri, P.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Pelizaeus, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Pellegrino, J.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Peng, H. P.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Peters, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany;Goethe Univ Frankfurt, D-60323 Frankfurt, Germany.
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ping, J. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Ping, R. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Pitka, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Poling, R.
    Univ Minnesota, Minneapolis, MN 55455 USA.
    Prasad, V.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Qi, H. R.
    Beihang Univ, Beijing 100191, Peoples R China.
    Qi, M.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Qian, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Qiao, C. F.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Qin, N.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Qin, X. S.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Qin, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Qiu, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Rashid, K. H.
    Univ Punjab, Lahore 54590, Pakistan;Govt Coll Women Univ, Sialkot 51310, Punjab, Pakistan.
    Redmer, C. F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Richter, M.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Ripka, M.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Rolo, M.
    INFN, I-10125 Turin, Italy.
    Rong, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Rosner, Ch.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Ruan, X. D.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Sarantsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;NRC Kurchatov Inst, PNPI, Gatchina 188300, Russia.
    Savrie, M.
    Univ Ferrara, I-44122 Ferrara, Italy.
    Schnier, C.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Shan, W.
    Peking Univ, Beijing 100871, Peoples R China.
    Shao, M.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Shen, C. P.
    Beihang Univ, Beijing 100191, Peoples R China.
    Shen, P. X.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Shen, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Sheng, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Song, J. J.
    Shandong Univ, Jinan 250100, Peoples R China.
    Song, W. M.
    Shandong Univ, Jinan 250100, Peoples R China.
    Song, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sosio, S.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Sowa, C.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Spataro, S.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Sun, G. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sun, J. F.
    Henan Normal Univ, Xinxiang 453007, Peoples R China.
    Sun, L.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Sun, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Sun, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sun, Y. J.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Sun, Y. K.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Sun, Y. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Sun, Z. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Sun, Z. T.
    Indiana Univ, Bloomington, IN 47405 USA.
    Tang, C. J.
    Sichuan Univ, Chengdu 610064, Peoples R China.
    Tang, G. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Tang, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Tapan, I.
    Uludag Univ, TR-16059 Bursa, Turkey.
    Tiemens, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands.
    Tsednee, B.
    Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongol Peo Rep.
    Uman, I.
    Near East Univ, Mersin 10, Nicosia, North Cyprus, Turkey.
    Varner, G. S.
    Univ Hawaii, Honolulu, HI 96822 USA.
    Wang, B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, B. L.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, D.
    Peking Univ, Beijing 100871, Peoples R China.
    Wang, D. Y.
    Peking Univ, Beijing 100871, Peoples R China.
    Wang, Dan
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, L. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, L. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, M.
    Shandong Univ, Jinan 250100, Peoples R China.
    Wang, Meng
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, W. P.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Wang, X. F.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Wang, Y.
    Soochow Univ, Suzhou 215006, Peoples R China.
    Wang, Y. D.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wang, Y. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wang, Y. Q.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wang, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, Z. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Wang, Z. H.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Wang, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wang, Zongyuan
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Weber, T.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wei, D. H.
    Guangxi Normal Univ, Guilin 541004, Peoples R China.
    Weidenkaff, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.
    Wen, S. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wiedner, U.
    Ruhr Univ Bochum, D-44780 Bochum, Germany.
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wu, L. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Wu, L. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Wu, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Xia, L.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Xia, X.
    Shandong Univ, Jinan 250100, Peoples R China.
    Xia, Y.
    Hunan Univ, Changsha 410082, Peoples R China.
    Xiao, D.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Xiao, H.
    Univ South China, Hengyang 421001, Peoples R China.
    Xiao, Y. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xiao, Z. J.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Xie, Y. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Xie, Y. H.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Xiong, X. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xiu, Q. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Xu, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Xu, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xu, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Xu, Q. J.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China.
    Xu, Q. N.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Xu, X. P.
    Soochow Univ, Suzhou 215006, Peoples R China.
    Yan, L.
    Univ Turin, I-10125 Turin, Italy;INFN, I-10125 Turin, Italy.
    Yan, W. B.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Yan, W. C.
    Beihang Univ, Beijing 100191, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Yan, Y. H.
    Hunan Univ, Changsha 410082, Peoples R China.
    Yang, H. J.
    Soochow Univ, Suzhou 215006, Peoples R China;Moscow Inst Phys & Technol, Moscow 141700, Russia.
    Yang, H. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Yang, L.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Yang, Y. H.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China.
    Yang, Y. X.
    Guangxi Normal Univ, Guilin 541004, Peoples R China.
    Yang, Yifan
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Ye, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Ye, M. H.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China.
    Yin, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    You, Z. Y.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Yu, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Yu, C. X.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Yu, J. S.
    Lanzhou Univ, Lanzhou 730000, Peoples R China.
    Yuan, C. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Yuan, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Yuncu, A.
    Bogazici Univ, TR-34342 Istanbul, Turkey.
    Zafar, A. A.
    Univ Punjab, Lahore 54590, Pakistan.
    Zallo, A.
    INFN, Lab Nazl Frascati, I-00044 Frascati, Italy.
    Zeng, Y.
    Hunan Univ, Changsha 410082, Peoples R China.
    Zeng, Z.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhang, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, B. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhang, C. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, D. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, H. H.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Zhang, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, J. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, J. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, L.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Zhang, S. Q.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Zhang, X. Y.
    Shandong Univ, Jinan 250100, Peoples R China.
    Zhang, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhang, Y. T.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhang, Yang
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, Yao
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhang, Yu
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhang, Z. H.
    Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
    Zhang, Z. P.
    Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhang, Z. Y.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Zhao, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhao, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhao, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhao, Lei
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhao, Ling
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, M. G.
    Nankai Univ, Tianjin 300071, Peoples R China.
    Zhao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, S. J.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China.
    Zhao, T. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhao, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhao, Z. G.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhemchugov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia;Moscow Inst Phys & Technol, Moscow 141700, Russia.
    Zheng, B.
    Univ South China, Hengyang 421001, Peoples R China.
    Zheng, J. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zheng, W. J.
    Shandong Univ, Jinan 250100, Peoples R China.
    Zheng, Y. H.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhong, B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China.
    Zhou, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zhou, X.
    Wuhan Univ, Wuhan 430072, Peoples R China.
    Zhou, X. K.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhou, X. R.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhou, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhou, Y. X.
    Guangxi Univ, Nanning 530004, Peoples R China.
    Zhu, J.
    Nankai Univ, Tianjin 300071, Peoples R China;Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China.
    Zhu, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhu, K. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhu, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zhu, S. H.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China.
    Zhu, X. L.
    Tsinghua Univ, Beijing 100084, Peoples R China.
    Zhu, Y. C.
    State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China;Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.
    Zhu, Y. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
    Zhuang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China.
    Zou, B. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Zou, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Study of the decays D+-> eta(('))e(+)nu(e)2018In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 97, no 9, article id 092009Article in journal (Refereed)
    Abstract [en]

    The charm semileptonic decays D+ -> eta e(+)nu(e) and D+ -> eta'e(+)nu(e) are studied with a sample of e(+)e(-) collision data corresponding to an integrated luminosity of 2.93 fb(-1) collected at root s = 3.773 GeV with the BESIII detector. We measure the branching fractions for D+ -> eta e(+)upsilon(e) to be (10.74 +/- 0.81 +/- 0.51)x10(-4), and for D+ -> eta'e(+)nu(e) to be (1.91 +/- 0.51 +/- 0.13) x 10(-4), where the uncertainties are statistical and systematic, respectively. In addition, we perform a measurement of the form factor in the decay D+ -> eta e(+)nu(e) . All the results are consistent with those obtained by the CLEO-c experiment.

  • 104.
    Ablikim, M.
    et al.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Achasov, M. N.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Ai, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Albayrak, O.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Albrecht, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Ambrose, D. J.
    Univ Rochester, 601 Elmwood Ave, Rochester, NY 14627 USA..
    Amoroso, A.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    An, F. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    An, Q.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Bai, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ferroli, R. Baldini
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Ban, Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Bennett, D. W.
    Indiana Univ, Bloomington, IN 47405 USA..
    Bennett, J. V.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Bertani, M.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Bettoni, D.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Bian, J. M.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Bianchi, F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Boger, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia..
    Boyko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Briere, R. A.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Cai, H.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Cai, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Cakir, O.
    Ankara Univ, TR-06100 Ankara, Turkey..
    Calcaterra, A.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Cao, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Cetin, S. A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey..
    Chang, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Chelkov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia.;Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia..
    Chen, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. Y.
    Beihang Univ, Beijing 100191, Peoples R China..
    Chen, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, M. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Chen, S.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Chen, S. J.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Chen, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Chen, X. R.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Chen, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Cheng, H. P.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Chu, X. K.
    Peking Univ, Beijing 100871, Peoples R China..
    Cibinetto, G.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Dai, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Dai, J. P.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Dbeyssi, A.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Dedovich, D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Deng, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Denig, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Denysenko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Destefanis, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    De Mori, F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Ding, Y.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Dong, C.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Dong, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Dong, L. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Dong, M. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Dou, Z. L.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Du, S. X.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Duan, P. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fan, J. Z.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Fang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Fang, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fang, X.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Fang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Farinelli, R.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy.;Univ Ferrara, I-44122 Ferrara, Italy..
    Fava, L.
    Univ Piemonte Orientale, I-15121 Alessandria, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Fedorov, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Feldbauer, F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Felici, G.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Feng, C. Q.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Fioravanti, E.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Fritsch, M.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Fu, C. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, X. L.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Gao, X. Y.
    Beihang Univ, Beijing 100191, Peoples R China..
    Gao, Y.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Gao, Z.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Garzia, I.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Goetzen, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Gong, L.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Gong, W. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Gradl, W.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Greco, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Gu, M. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Gu, Y. T.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Guan, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, A. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, L. B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Guo, R. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y. P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Haddadi, Z.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Hafner, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Han, S.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Hao, X. Q.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Harris, F. A.
    Univ Hawaii, Honolulu, HI 96822 USA..
    He, K. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Held, T.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Heng, Y. K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Hou, Z. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, C.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Hu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, J. F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Hu, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Hu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Huang, G. S.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Huang, J. S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Huang, X. T.
    Shandong Univ, Jinan 250100, Peoples R China..
    Huang, X. Z.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Huang, Y.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Huang, Z. L.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Hussain, T.
    Univ Punjab, Lahore 54590, Pakistan..
    Ji, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, Q. P.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ji, X. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Jiang, L. W.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Jiang, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Jiang, X. Y.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Jiao, J. B.
    Shandong Univ, Jinan 250100, Peoples R China..
    Jiao, Z.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Jin, D. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Jin, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Julin, A.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Kalantar-Nayestanaki, N.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Kang, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Kang, X. S.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Kavatsyuk, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Ke, B. C.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Kiese, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kliemt, R.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kloss, B.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kolcu, O. B.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey.;Istanbul Arel Univ, TR-34295 Istanbul, Turkey..
    Kopf, B.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Kornicer, M.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kuehn, W.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Lange, J. S.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Lara, M.
    Indiana Univ, Bloomington, IN 47405 USA..
    Larin, P.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Leng, C.
    Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Li, Cui
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. Uppsala Univ, Box 516, SE-75120 Uppsala, Sweden..
    Li, Cheng
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Li, D. M.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Li, F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Li, F. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Li, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, Jin
    Seoul Natl Univ, Seoul 151747, South Korea..
    Li, K.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China.;Shandong Univ, Jinan 250100, Peoples R China..
    Li, Lei
    Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China..
    Li, P. R.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, Q. Y.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, T.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, W. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, W. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, X. L.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, X. N.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Li, X. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Li, Y. B.
    Beihang Univ, Beijing 100191, Peoples R China..
    Li, Z. B.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Liang, H.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Liang, Y. F.
    Sichuan Univ, Chengdu 610064, Peoples R China..
    Liang, Y. T.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Liao, G. R.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Lin, D. X.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Liu, B.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Liu, B. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, C. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, D.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Liu, F. H.
    Shanxi Univ, Taiyuan 030006, Peoples R China..
    Liu, Fang
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Feng
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Liu, H. B.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Liu, H. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Henan Univ Sci & Technol, Luoyang 471003, Peoples R China..
    Liu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, J. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Liu, J. P.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Liu, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, K.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Liu, K. Y.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Liu, L. D.
    Peking Univ, Beijing 100871, Peoples R China..
    Liu, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Liu, Q.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Liu, S. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Liu, X.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Liu, Y. B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Liu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Liu, Zhiqing
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Loehner, H.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Lou, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China.;Univ Texas Dallas, Richardson, TX 75083 USA..
    Lu, H. J.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Lu, J. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Lu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, Y. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Luo, C. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Luo, M. X.
    Zhejiang Univ, Hangzhou 310027, Peoples R China..
    Luo, T.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Luo, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Lyu, X. R.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Ma, F. C.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Ma, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, L. L.
    Shandong Univ, Jinan 250100, Peoples R China..
    Ma, M. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, Q. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, X. N.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ma, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Ma, Y. M.
    Shandong Univ, Jinan 250100, Peoples R China..
    Maas, F. E.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Maggiora, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Mao, Y. J.
    Peking Univ, Beijing 100871, Peoples R China..
    Mao, Z. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Marcello, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Messchendorp, J. G.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Min, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Min, T. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Mitchell, R. E.
    Indiana Univ, Bloomington, IN 47405 USA..
    Mo, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Mo, Y. J.
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Morales, C. Morales
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Muchnoi, N. Yu.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Muramatsu, H.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Nefedov, Y.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Nikolaev, I. B.
    GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Ning, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Nisar, S.
    COMSATS Inst Informat Technol, Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan..
    Niu, S. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Niu, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Olsen, S. L.
    Seoul Natl Univ, Seoul 151747, South Korea..
    Ouyang, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Pacetti, S.
    Ist Nazl Fis Nucl, I-06100 Perugia, Italy.;Univ Perugia, I-06100 Perugia, Italy..
    Pan, Y.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Patteri, P.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Pelizaeus, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Peng, H. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Peters, K.
    GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany.;Goethe Univ Frankfurt, D-60323 Frankfurt, Germany..
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ping, J. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Ping, R. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Poling, R.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Prasad, V.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qi, H. R.
    Beihang Univ, Beijing 100191, Peoples R China..
    Qi, M.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Qian, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Qiao, C. F.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Qin, L. Q.
    Shandong Univ, Jinan 250100, Peoples R China..
    Qin, N.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Qin, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qin, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Qiu, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rashid, K. H.
    Univ Punjab, Lahore 54590, Pakistan..
    Redmer, C. F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Ripka, M.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Rong, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rosner, Ch.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Ruan, X. D.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Sarantsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;PNPI, NRC Kurchatov Inst, Gatchina 188300, Russia..
    Savrie, M.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics. Uppsala Univ, Box 516, SE-75120 Uppsala, Sweden..
    Schumann, S.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Shan, W.
    Peking Univ, Beijing 100871, Peoples R China..
    Shao, M.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Shen, C. P.
    Beihang Univ, Beijing 100191, Peoples R China..
    Shen, P. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Shen, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sheng, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Shi, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, W. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sosio, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Spataro, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Sun, G. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, J. F.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Sun, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Y. J.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Sun, Y. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Z. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Sun, Z. T.
    Indiana Univ, Bloomington, IN 47405 USA..
    Tang, C. J.
    Sichuan Univ, Chengdu 610064, Peoples R China..
    Tang, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Tapan, I.
    Uludag Univ, TR-16059 Bursa, Turkey..
    Thorndike, E. H.
    Univ Rochester, 601 Elmwood Ave, Rochester, NY 14627 USA..
    Tiemens, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Ullrich, M.
    Justus Liebig Univ Giessen, Inst Phys 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Uman, I.
    Near East Univ, TR-10 North Cyprus, Mersin, Turkey..
    Varner, G. S.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Wang, B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Wang, B. L.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Wang, D.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, D. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, L. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, L. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, M.
    Shandong Univ, Jinan 250100, Peoples R China..
    Wang, P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, W. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, X. F.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Wang, Y.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Wang, Y. D.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wang, Y. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, Y. Q.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wang, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, Z. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, Z. H.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Wang, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Inst High Energy Phys, Beijing 100049, Peoples R China..
    Weber, T.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wei, D. H.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Weidenkaff, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wen, S. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wiedner, U.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wu, L. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, L. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Xia, L.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Xia, L. G.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Xia, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Xiao, D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiao, H.
    Univ South China, Hengyang 421001, Peoples R China..
    Xiao, Z. J.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Xie, Y. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Xiu, Q. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Xu, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, Q. J.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China..
    Xu, Q. N.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Xu, X. P.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Yan, L.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Yan, W. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Yan, W. C.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Yan, Y. H.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Yang, H. J.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China.;Shanghai Key Lab Particle Phys & Cosmol, Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China..
    Yang, H. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yang, L.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Yang, Y. X.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Ye, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Ye, M. H.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China..
    Yin, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yu, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Yu, C. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Yu, J. S.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Yuan, C. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuan, W. L.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Yuan, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuncu, A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey.;Bogazici Univ, TR-34342 Istanbul, Turkey..
    Zafar, A. A.
    Univ Punjab, Lahore 54590, Pakistan..
    Zallo, A.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Zeng, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Zeng, Z.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhang, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, B. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhang, C.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Zhang, C. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, D. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, H. H.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Zhang, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhang, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, S. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhang, X. Y.
    Shandong Univ, Jinan 250100, Peoples R China..
    Zhang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhang, Y. N.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Y. T.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhang, Yu
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Z. H.
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Zhang, Z. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhang, Z. Y.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Zhao, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhao, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhao, Lei
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhao, Ling
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, M. G.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Q. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, S. J.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Zhao, T. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhao, Z. G.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhemchugov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Inst Phys & Technol, Moscow 141700, Russia..
    Zheng, B.
    Univ South China, Hengyang 421001, Peoples R China..
    Zheng, J. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zheng, W. J.
    Shandong Univ, Jinan 250100, Peoples R China..
    Zheng, Y. H.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhong, B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Zhou, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhou, X.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Zhou, X. K.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhou, X. R.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhou, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhu, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, S. H.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China..
    Zhu, X. L.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Zhu, Y. C.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zhu, Y. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhuang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China..
    Zotti, L.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Zou, B. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zou, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Improved measurements of branching fractions for eta(c) -> phi phi and omega phi2017In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, no 9, article id 092004Article in journal (Refereed)
    Abstract [en]

    Using (223.7 +/- 1.4) x 10(6) J / Psi events accumulated with the BESIII detector, we study eta(c) decays to phi phi and omega phi final states. The branching fraction of n(c) -> phi phi is measured to be Br(eta(c) -> phi phi) = (2.5 +/- 0(-0.7)(+0.3) +/- 0.6) X 10(-3,) where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J / Psi -> gamma eta(C)). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of eta(c) -> omega phi is observed, and the upper limit on the branching fraction is determined to be Br(eta(c) -> omega phi) < 2.5 x 10(-4) at the 90% confidence level.

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    Ablikim, M.
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    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Achasov, M. N.
    G I Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Ai, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Albayrak, O.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Albrecht, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Ambrose, D. J.
    Univ Rochester, 601 Elmwood Ave, Rochester, NY 14627 USA..
    Amoroso, A.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    An, F. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    An, Q.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Bai, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ferroli, R. Baldini
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Ban, Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Bennett, D. W.
    Indiana Univ, Bloomington, IN 47405 USA..
    Bennett, J. V.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Bertani, M.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Bettoni, D.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Bian, J. M.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Bianchi, F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Boger, E.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Phys Tech Inst, Moscow 141700, Russia..
    Boyko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Briere, R. A.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Cai, H.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Cai, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Cakir, O.
    Ankara Univ, TR-06100 Ankara, Turkey..
    Calcaterra, A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Cao, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Cetin, S. A.
    Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey..
    Chang, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Chelkov, G.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Phys Tech Inst, Moscow 141700, Russia.;Tomsk State Univ, Funct Electron Lab, Tomsk 634050, Russia..
    Chen, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, H. Y.
    Beihang Univ, Beijing 100191, Peoples R China..
    Chen, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Chen, M. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Chen, S.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Chen, S. J.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Chen, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Chen, X. R.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Chen, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Cheng, H. P.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Chu, X. K.
    Peking Univ, Beijing 100871, Peoples R China..
    Cibinetto, G.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Dai, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Dai, J. P.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Dbeyssi, A.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Dedovich, D.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Deng, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Denig, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Denysenko, I.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Destefanis, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    De Mori, F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Ding, Y.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Dong, C.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Dong, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Dong, L. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Dong, M. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Dou, Z. L.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Du, S. X.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Duan, P. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fan, J. Z.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Fang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Fang, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Fang, X.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Fang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Farinelli, R.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy.;Univ Ferrara, I-44122 Ferrara, Italy..
    Fava, L.
    Univ Piemonte Orientale, I-15121 Alessandria, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Fedorov, O.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Feldbauer, F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Felici, G.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Feng, C. Q.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Fioravanti, E.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Fritsch, M.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany.;Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Fu, C. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Gao, X. L.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Gao, X. Y.
    Beihang Univ, Beijing 100191, Peoples R China..
    Gao, Y.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Gao, Z.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Garzia, I.
    Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy..
    Goetzen, K.
    GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Gong, L.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Gong, W. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Gradl, W.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Greco, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Gu, M. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Gu, Y. T.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Guan, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, A. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, L. B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Guo, R. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Guo, Y. P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Haddadi, Z.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Hafner, A.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Han, S.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Hao, X. Q.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Harris, F. A.
    Univ Hawaii, Honolulu, HI 96822 USA..
    He, K. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Held, T.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Heng, Y. K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Hou, Z. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, C.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Hu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Hu, J. F.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Hu, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Hu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Huang, G. S.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Huang, J. S.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Huang, X. T.
    Shandong Univ, Jinan 250100, Peoples R China..
    Huang, X. Z.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Huang, Y.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Huang, Z. L.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Hussain, T.
    Univ Punjab, Lahore 54590, Pakistan..
    Ji, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, Q. P.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ji, X. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ji, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Jiang, L. W.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Jiang, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Jiang, X. Y.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Jiao, J. B.
    Shandong Univ, Jinan 250100, Peoples R China..
    Jiao, Z.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Jin, D. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Jin, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Johansson, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Julin, A.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Kalantar-Nayestanaki, N.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Kang, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Kang, X. S.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Kavatsyuk, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Ke, B. C.
    Carnegie Mellon Univ, Pittsburgh, PA 15213 USA..
    Kiese, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kliemt, R.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kloss, B.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Kolcu, O. B.
    Istanbul Arel Univ, TR-34295 Istanbul, Turkey..
    Kopf, B.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Kornicer, M.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Kupsc, Andrzej
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Kuhn, W.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Lange, J. S.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Lara, M.
    Indiana Univ, Bloomington, IN 47405 USA..
    Larin, P.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Leithoff, H.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Leng, C.
    Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Li, Cui
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Li, Cheng
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Li, D. M.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Li, F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Li, F. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Li, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, H. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, J. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, Jin
    Seoul Natl Univ, Seoul 151747, South Korea..
    Li, K.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China.;Shandong Univ, Jinan 250100, Peoples R China..
    Li, Lei
    Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China..
    Li, P. R.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, Q. Y.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, T.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, W. D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, W. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Li, X. L.
    Shandong Univ, Jinan 250100, Peoples R China..
    Li, X. M.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Li, X. N.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Li, X. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Li, Y. B.
    Beihang Univ, Beijing 100191, Peoples R China..
    Li, Z. B.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Liang, H.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Liang, J. J.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Liang, Y. F.
    Sichuan Univ, Chengdu 610064, Peoples R China..
    Liang, Y. T.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Liao, G. R.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Lin, D. X.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Liu, B.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Liu, B. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, C. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, D.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Liu, F. H.
    Shanxi Univ, Taiyuan 030006, Peoples R China..
    Liu, Fang
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, Feng
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Liu, H. B.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Liu, H. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;Henan Univ Sci & Technol, Luoyang 471003, Peoples R China..
    Liu, H. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, J. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Liu, J. P.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Liu, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Liu, K.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Liu, K. Y.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Liu, L. D.
    Peking Univ, Beijing 100871, Peoples R China..
    Liu, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Liu, Q.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Liu, S. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Liu, X.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Liu, Y. B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Liu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Liu, Zhiqing
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Loehner, H.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Lou, X. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, H. J.
    Huangshan Coll, Huangshan 245000, Peoples R China..
    Lu, J. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Lu, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Lu, Y. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Luo, C. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Luo, M. X.
    Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China..
    Luo, T.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Luo, X. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Lyu, X. R.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Ma, F. C.
    Liaoning Univ, Shenyang 110036, Peoples R China..
    Ma, H. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, L. L.
    Shandong Univ, Jinan 250100, Peoples R China..
    Ma, M. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, Q. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, T.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Ma, X. N.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Ma, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Ma, Y. M.
    Shandong Univ, Jinan 250100, Peoples R China..
    Maas, F. E.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Maggiora, M.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Mao, Y. J.
    Peking Univ, Beijing 100871, Peoples R China..
    Mao, Z. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Marcello, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Messchendorp, J. G.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Mezzadri, G.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Min, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Mitchell, R. E.
    Indiana Univ, Bloomington, IN 47405 USA..
    Mo, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Mo, Y. J.
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Morales, C. Morales
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Muchnoi, N. Yu.
    G I Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Muramatsu, H.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Nefedov, Y.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia..
    Nerling, F.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Nikolaev, I. B.
    G I Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
    Ning, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Nisar, S.
    COMSATS Inst Informat Technol, Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan..
    Niu, S. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Niu, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Olsen, S. L.
    Seoul Natl Univ, Seoul 151747, South Korea..
    Ouyang, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Pacetti, S.
    Ist Nazl Fis Nucl, I-06100 Perugia, Italy.;Univ Perugia, I-06100 Perugia, Italy..
    Pan, Y.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Patteri, P.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Pelizaeus, M.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Peng, H. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Peters, K.
    GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany..
    Pettersson, Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ping, J. L.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Ping, R. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Poling, R.
    Univ Minnesota, Minneapolis, MN 55455 USA..
    Prasad, V.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qi, H. R.
    Beihang Univ, Beijing 100191, Peoples R China..
    Qi, M.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Qian, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Qiao, C. F.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Qin, L. Q.
    Shandong Univ, Jinan 250100, Peoples R China..
    Qin, N.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Qin, X. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Qin, Z. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Qiu, J. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rashid, K. H.
    Univ Punjab, Lahore 54590, Pakistan..
    Redmer, C. F.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Ripka, M.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Rong, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Rosner, Ch.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Ruan, X. D.
    Guangxi Univ, Nanning 530004, Peoples R China..
    Sarantsev, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;PNPI, NRC Kurchatov Inst, Gatchina 188300, Russia. Univ Texas Dallas, Richardson, TX 75083 USA..
    Savrie, M.
    Univ Ferrara, I-44122 Ferrara, Italy..
    Schönning, Karin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Schumann, S.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Shan, W.
    Peking Univ, Beijing 100871, Peoples R China..
    Shao, M.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Shen, C. P.
    Beihang Univ, Beijing 100191, Peoples R China..
    Shen, P. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Shen, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sheng, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Shi, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, W. M.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Song, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sosio, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Spataro, S.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Sun, G. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, J. F.
    Henan Normal Univ, Xinxiang 453007, Peoples R China..
    Sun, S. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, X. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Y. J.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Sun, Y. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Sun, Z. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Sun, Z. T.
    Indiana Univ, Bloomington, IN 47405 USA..
    Tang, C. J.
    Sichuan Univ, Chengdu 610064, Peoples R China..
    Tang, X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Tapan, I.
    Uludag Univ, TR-16059 Bursa, Turkey..
    Thorndike, E. H.
    Univ Rochester, 601 Elmwood Ave, Rochester, NY 14627 USA..
    Tiemens, M.
    Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands..
    Ullrich, M.
    Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany..
    Uman, I.
    Near East Univ, Mersin 10, Turkey..
    Varner, G. S.
    Univ Hawaii, Honolulu, HI 96822 USA..
    Wang, B.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Wang, B. L.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Wang, D.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, D. Y.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, L. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, L. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, M.
    Shandong Univ, Jinan 250100, Peoples R China..
    Wang, P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, P. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wang, S. G.
    Peking Univ, Beijing 100871, Peoples R China..
    Wang, W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, W. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, X. F.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Wang, Y.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Wang, Y. D.
    Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wang, Y. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, Y. Q.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wang, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, Z. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, Z. H.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Wang, Z. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Weber, T.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wei, D. H.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Wei, J. B.
    Peking Univ, Beijing 100871, Peoples R China..
    Weidenkaff, P.
    Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
    Wen, S. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wiedner, U.
    Bochum Ruhr Univ, D-44780 Bochum, Germany..
    Wolke, Magnus
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Wu, L. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, L. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Wu, Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Xia, L.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Xia, L. G.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Xia, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Xiao, D.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xiao, H.
    Univ South China, Hengyang 421001, Peoples R China..
    Xiao, Z. J.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Xie, Y. G.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Xiu, Q. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Xu, G. F.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Xu, Q. J.
    Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China..
    Xu, Q. N.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Xu, X. P.
    Soochow Univ, Suzhou 215006, Peoples R China..
    Yan, L.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Yan, W. B.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Yan, W. C.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Yan, Y. H.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Yang, H. J.
    Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China..
    Yang, H. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yang, L.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Yang, Y. X.
    Guangxi Normal Univ, Guilin 541004, Peoples R China..
    Ye, M.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Ye, M. H.
    China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China..
    Yin, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yu, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Yu, C. X.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Yu, J. S.
    Lanzhou Univ, Lanzhou 730000, Peoples R China..
    Yuan, C. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuan, W. L.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Yuan, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Yuncu, A.
    Bogazici Univ, TR-34342 Istanbul, Turkey..
    Zafar, A. A.
    Univ Punjab, Lahore 54590, Pakistan..
    Zallo, A.
    Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy..
    Zeng, Y.
    Hunan Univ, Changsha 410082, Hunan, Peoples R China..
    Zeng, Z.
    State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhang, B. X.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, B. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhang, C.
    Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China..
    Zhang, C. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, D. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, H. H.
    Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China..
    Zhang, H. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhang, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, S. Q.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhang, X. Y.
    Shandong Univ, Jinan 250100, Peoples R China..
    Zhang, Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhang, Y. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhang, Y. N.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Y. T.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhang, Yu
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhang, Z. H.
    Cent China Normal Univ, Wuhan 430079, Peoples R China..
    Zhang, Z. P.
    Univ Sci & Technol China, Hefei 230026, Peoples R China..
    Zhang, Z. Y.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Zhao, G.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhao, J. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, J. Z.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhao, Lei
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhao, Ling
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, M. G.
    Nankai Univ, Tianjin 300071, Peoples R China..
    Zhao, Q.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Q. W.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, S. J.
    Zhengzhou Univ, Zhengzhou 450001, Peoples R China..
    Zhao, T. C.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhao, Y. B.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhao, Z. G.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhemchugov, A.
    Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.;Moscow Phys Tech Inst, Moscow 141700, Russia..
    Zheng, B.
    Univ South China, Hengyang 421001, Peoples R China..
    Zheng, J. P.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zheng, W. J.
    Shandong Univ, Jinan 250100, Peoples R China..
    Zheng, Y. H.
    Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Zhong, B.
    Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China..
    Zhou, L.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhou, X.
    Wuhan Univ, Wuhan 430072, Peoples R China..
    Zhou, X. K.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhou, X. R.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhou, X. Y.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, K. J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhu, S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, S. H.
    Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China..
    Zhu, X. L.
    Tsinghua Univ, Beijing 100084, Peoples R China..
    Zhu, Y. C.
    Univ Sci & Technol China, Hefei 230026, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zhu, Y. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhu, Z. A.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zhuang, J.
    Inst High Energy Phys, Beijing 100049, Peoples R China.;State Key Lab Particle Detect & Electron, Beijing 100049, Peoples R China..
    Zotti, L.
    Univ Turin, I-10125 Turin, Italy.;Ist Nazl Fis Nucl, I-10125 Turin, Italy..
    Zou, B. S.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Zou, J. H.
    Inst High Energy Phys, Beijing 100049, Peoples R China..
    Measurement of higher-order multipole amplitudes in psi(3686) -> gamma chi(c1,2) with chi(c1,2) -> gamma J/psi and search for the transition eta(c)(2S) -> gamma J/psi2017In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, no 7, article id 072004Article in journal (Refereed)
    Abstract [en]

    Using 106 x 10(6) psi(3686) events collected with the BESIII detector, we measure multipole amplitudes for the decay psi(3686) ->; gamma chi(c1,2) -> gamma gamma J/psi beyond the dominant electric-dipole amplitudes. The normalized magnetic-quadrupole (M2) amplitude for psi(3686) -> gamma chi(c1,2) -> gamma gamma J/psi and the normalized electric-dipole amplitudes for psi(3686) -> gamma chi(c2) -> gamma J/psi and determined. The M2 amplitudes for psi(3686) -> gamma chi(c1) and ; chi(c1,2) -> gamma J/psi are found to differ significantly from zero and are consistent with theoretical predictions. We also obtain the ratios of M2 contributions of psi(3686) and J/psi decays to;2,chi(c1,2,) b(2)(1/)b(2)(2) = 1.35 +/- 0.72 and a(2)(1/)a(2)(2) = 0.617 +/- 0.083,,which agree well with theoretical expectations. By considering the multipole contributions of chi(c1,2), we measure the product branching fractions for the cascade decays psi(3686) -> gamma chi(c 0,1,2) -> gamma gamma J/psi and search for the process eta(c)(2s) -> gamma J/psi through psi(3686) -> gamma eta(c)(2s).The product branching fraction for psi(3686) -> gamma chi(c0) -> gamma gamma J/psi is 3 sigma larger than published measurements, while those of psi(3686) -> gamma chi(c1,2) -> gamma gamma J/psi are consistent. No significant signal for the decay psi(3686) -> gamma eta(c) (2s) -> gamma gamma J/psi is observed, and the upper limit of the product branching fraction at the 90% confidence level is determined.

  • 106. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Measurement of the branching fraction of J/psi -> omega eta 'pi(+)pi(-) and search for J/psi -> omega X(1835), X(1835) -> eta 'pi(+)pi(-) decay2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 7, article id 071101Article in journal (Refereed)
    Abstract [en]

    Using a sample of 1.31 x 10(9) J/psi events collected by the BESIII detector at BEPCII during 2009 and 2012, we study the J/psi -> omega eta'pi(+)pi(-) thorn p-hadronic process. For the first time, we measure the branching ratio B(J/psi -> omega eta'pi(+)pi(-)) = (1.12 +/- 0.02 +/- 0.13) x 10(-3). We search for the X(1835) state in the eta'pi(+)pi(-) invariant mass spectra. No evidence is found and we estimate the upper limit on the branching fraction at 90% confidence level to be B(J/psi -> omega X(1835), X(1835) -> eta'pi(+)pi(-)) < 6.2 x 10(-5).

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  • 107.
    Ablikim, M.
    et al.
    Institute of High Energy Physics, Beijing 100049, People’s Republic of China.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, C.
    Uppsala University.
    Papenbrock, Michael
    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.
    Thorén, Viktor
    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.
    Institute of High Energy Physics, Beijing 100049, People’s Republic of China.
    Study of the process e(+) e(-) -> p(p)over-bar via initial state radiation at BESIII2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 9, article id 092002Article in journal (Refereed)
    Abstract [en]

    The Born cross section for the process e(+) e(-)-> p (p) over bar is measured using the initial state radiation technique with an undetected photon. This analysis is based on datasets corresponding to an integrated luminosity of 75 fb(-1), collected with the BESIII detector at the BEPCII collider at center of mass energies between 3.773 and 4.600 GeV. The Born cross section for the process e(+) e(-)-> p (p) over bar and the proton effective form factor are determined in the p (p) over bar invariant mass range between 2.0 and 3.8 GeV/c(2) divided into 30 intervals. The proton form factor ratio (vertical bar G(E)vertical bar/vertical bar G(M)vertical bar) is measured in 3 intervals of the p (p ) over bar invariant mass between 2.0 and 3.0 GeV/c(2).

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  • 108. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    Pettersson, J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
    Schönning, Karin
    Thorén, Viktor
    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.
    Search for the decay eta ' -> gamma gamma eta (Search for the decay η′→γγη)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 5, article id 052015Article in journal (Refereed)
    Abstract [en]

    Using a data sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, a search for eta' -> gamma gamma eta via J/psi ->gamma eta' is performed for the first time. No significant eta' signal is observed in the gamma gamma eta invariant mass spectrum, and the branching fraction of eta' -> gamma gamma eta is determined to be less than 1.33 x 10(-4) at the 90% confidence level.

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  • 109. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Zhang, Z. H.
    Measurement of branching fractions of psi(3686) -> phi eta ', phi f(1) (1285) and phi eta(1405)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 9, article id 092003Article in journal (Refereed)
    Abstract [en]

    Using a sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector, we perform a study of the decay psi(3686) -> phi pi(+)pi(-)eta. The branching fraction of psi(3686) -> phi eta' is determined to be (1.51 +/- 0.16 +/- 0.12) x 10(-5), which is consistent with the previous measurement but with significantly improved precision. The resonances f(1)(1285) and eta(1405) are clearly observed in the pi(+)pi(-)eta mass spectrum with statistical significances of 18s and 9.7 sigma, respectively. The corresponding product branching fractions are measured to be B(psi(3686) -> phi f(1)(1285), f(1)(1285) -> pi(+)pi(-)eta) = )1.03 +/- 0.10 +/- 0.09) x 10(-5) and B(psi(3686) -> phi eta(1405), eta(1405) -> pi(+)pi(-)eta) = (8.46 +/- 1.37 +/- 0.92) x 10(-6). These results are used to test the perturbative QCD "12% rule."

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  • 110. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Amplitude analysis of D+-> K-S(0)pi(+)pi(+)pi(-)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 7, article id 072008Article in journal (Refereed)
    Abstract [en]

    The decay D+-> K-S(0)pi(+)pi(+)pi(-) is studied with an amplitude analysis using a data set of 2.93 fb(-1) of e(+)e(-) collisions at the psi(3770) peak accumulated by the BESIII detector. Intermediate states and nonresonant components, and their relative fractions and phases, have been determined. The significant amplitudes, which contribute to the model that best fits the data, are composed of five quasitwo-body decays K(S)(0)a(1)(1260)(+), (K) over bar (1)(1270)(0)pi(+) (K) over bar (1)(1400)(0)pi(+), (K) over bar (1)(1650)(0)pi(+), and (K) over bar (1460)(0)pi(+), a three-body decay K-S(0)pi(+)rho(0), as well as a nonresonant component K-S(0)pi(+)pi(+)pi(-). The dominant amplitude is K(S)(0)a(1)(1260)(+), with a fit fraction of (40.3 +/- 2.1 +/- 2.9)%, where the first and second uncertainties are statistical and systematic, respectively.

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  • 111. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Cross section measurement of e(+) e(-) -> eta ' J/psi from root S=4.178 to 4.600 GeV2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 1, article id 012008Article in journal (Refereed)
    Abstract [en]

    The cross section of the process e(+) e(-) -> eta ' J/ psi is measured at center-of-mass (c.m.) energies from root S = 4.178 to 4.600 GeV using data samples corresponding to a total integrated luminosity of 11 fb(-1) collected with the BESIII detector operating at the BEPCII storage ring. The dependence of the cross section on root S shows an enhancement around 4.2 GeV. While the shape of the cross section cannot be fully explained with a single psi(4160) or psi(4260) state, a coherent sum of the two states does provide a reasonable description of the data.

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  • 112. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Cross section measurements of e(+) e(-) -> omega chi(c0) from root s=4.178 to 4.278 GeV2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 9, article id 091103Article in journal (Refereed)
    Abstract [en]

    The cross section of the process e(+)e(-) -> omega chi(C0) is measured at center -of -mass energies from root s = 4.178 to 4.278 GeV using a data sample of 7 fb(-1) collected with the BESIII detector operating at the BEPCII storage ring. The dependence of the cross section on root s shows a resonant structure with mass of (4218.5 +/- 1.6(stat) +/- 4.0(syst)) MeV/c(2) and width of (28.2 +/- 3.9(stat) +/- 1.6(syst)) MeV, respectively. This observation confirms and improves upon the result of a previous study. The angular distribution of the e(+) e(-) ->omega chi(C0) process is extracted for the first time.

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  • 113. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Cross section measurements of e+e- -> K+ K- K+ K- and ΦK+ K- at center-of-mass energies from 2.10 to 3.08 GeV2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 3, article id 032009Article in journal (Refereed)
    Abstract [en]

    We measure the Born cross sections of the process e(+)e(-) -> K+ K- K+ K- at center-of-mass (c.m.) energies, root s, between 2.100 and 3.080 GeV. The data were collected using the BESIII detector at the BEPCII collider. An enhancement at root s = 2.232 GeV is observed, very close to the e(+)e(-) -> Lambda(Lambda) over bar production threshold. A similar enhancement at the same c.m. energy is observed in the e(+)e(-) -> phi K+ K- cross section. The energy dependence of the K+ K- K+ K- and phi K+ K- cross sections differs significantly from that of e(+)e(-) -> phi pi(+)pi(-).

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  • 114. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    First observation of the decay chi(cJ) -> Sigma(+)(p)over-barK(S)(0)+ c.c. (J=0,1,2)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 9, article id 092006Article in journal (Refereed)
    Abstract [en]

    Using E1 radiative transitions psi(3686) -> gamma chi(cJ) from a sample of (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, the decays chi(cJ) -> Sigma(+)(p) over barK(S)(0) + c.c.(J = 0,1,2) are studied. The decay branching fractions are measured to be B(chi(c0) -> Sigma(+)(p) over barK(S)(0) + c.c.) = (3.52 +/- 0.19 +/- 0.21) x 10(-4), B(chi(c1) -> Sigma(+)(p) over barK(S)(0) + c.c.) = (1.53 +/- 0.10 +/- 0.08) x 10(-4), and B(chi(c2) -> Sigma(+)(p) over barK(S)(0) + c.c.) = (8.25 +/- 0.83 +/- 0.49) x 10(-5), where the first and second uncertainties are the statistical and systematic ones, respectively. No evident intermediate resonances arc observed in the studied processes.

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  • 115. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    First observations of h(c )-> hadrons2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 7, article id 072008Article in journal (Refereed)
    Abstract [en]

    Based on (4.48 +/- 0.03) x 10(8) Psi(3686) events, collected with the BESIII detector at the BEPCII storage ring, five h(c) hadronic decays are searched for via the process Psi(3686) -> pi(0)h(c). Three of them, h(c) -> p (p) over bar pi(+)pi(-) , pi(+)pi(-)pi(0 )and 2(pi(+)pi(-))pi(0) are observed for the first time with significances of 7.4 sigma, 4.6 sigma, and 9.1 sigma, and their branching fractions are determined to be (2.89 +/- 0.32 +/- 0.55) x 10(-3), (1.60 +/- 0.40 +/- 0.32) x 10(-3), and (7.44 +/- 0.94 +/- 1.52) x 10(-3), respectively, where the first uncertainties are statistical and the second systematic. No significant signal is observed for the other two decay modes, and the corresponding upper limits of the branching fractions are determined to be B(h(c) -> 3(pi(+)pi(-))pi(0)) < 8.7 x 10(-3) and B(h(c) -> K+K-pi(+)pi(-) ) < 5.8 x 10(-4) at the 90% confidence level.

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  • 116. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Improved measurements of the absolute branching fractions of the inclusive decays D+(0) -> phi X2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 7, article id 072006Article in journal (Refereed)
    Abstract [en]

    By analyzing 2.93 fb(-1) of e(+)e(-) annihilation data taken at the center-of-mass energy root s = 3.773 GeV with the BESIII detector, we determine the branching fractions of the inclusive decays D+-> phi X and D-0 -> phi X to be (1.135 +/- 0.034 +/- 0.031)% and (1.091 +/- 0.027 +/- 0.035)%, respectively, where X denotes any possible particle combination. The first uncertainties are statistical, and the second are systematic. We also determine the branching fractions of the decays D -> phi X and their charge conjugate modes (D) over bar -> phi(X) over bar separately for the first time, and no significant CP asymmetry is observed.

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  • 117. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Measurement of J/psi -> Xi(1530+)(-) (Xi)over-bar(+) and evidence for the radiative decay Xi(153)(-) -> gamma Xi(-)2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 1, article id 012004Article in journal (Refereed)
    Abstract [en]

    The SU(3)-flavor violating decay J/psi -> Xi(1530)(-) (Xi) over bar (+) + c.c. is studied using (1310.6 +/- 7.0) x 10(6) J/psi events collected with the BESIII detector at BEPCII, and the branching fraction is measured to be B(J/psi -> Xi(1530)(-) (Xi) over bar (+) + c.c.) = (3.17 +/- 0.02(stat) +/- 0.08(syst)) x 10(-4). This result is consistent with previous measurements with an order of magnitude improved precision. The angular parameter for this decay is measured for the first time and is found to be alpha = -0.21 +/- 0.04(stat) +/- 0.06(syst). In addition, we report evidence for the radiative decay Xi(1530)(-) -> gamma Xi(-) with a significance of 3.9 sigma, including the systematic uncertainties. The 90% confidence level upper limit on the branching fraction is determined to be B(Xi(1530)(-) -> gamma Xi(-)) <= 3.7%.

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  • 118. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Measurements of weak decay asymmetries of Lambda(+)(c) -> pK(S)(0), Lambda pi(+), Sigma(+)pi(0), and Sigma(0)pi(+)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 7, article id 072004Article in journal (Refereed)
    Abstract [en]

    Using e(+)e(-) -> Lambda(+)(c)(Lambda) over bar (-)(c). production from a 567 pb(-1) data sample collected by BESIII at 4.6 GeV, a full angular analysis is carried out simultaneously on the four decay modes of Lambda(+)(c) -> pK(S)(0), Lambda pi(+), Sigma(+)pi(0), and Sigma(0)pi(+). For the first time, the Lambda(+)(c) transverse polarization is studied in unpolarized e(+)e(-) collisions, where a nonzero effect is observed with a statistical significance of 2.1 sigma. The decay asymmetry parameters of the Lambda(+)(c) weak hadronic decays into pK(S)(0), Lambda pi(+), Sigma(+)pi(0), and Sigma(0)pi(+) are measured to be 0.18 +/- 0.43(stat) +/- 0.14(syst), -0.80 +/- 0.11(stat) +/- 0.02(syst), -0.57 +/- 0.10(stat) +/- 0.07(syst), and -0.73 +/- 0.17(stat) +/- 0.07(syst), respectively. In comparison with previous results, the measurements for the Lambda pi(+) and Sigma(+)pi(0) modes are consistent but with improved precision, while the parameters for the pK(S)(0) and Sigma(+)pi(0) modes are measured for the first time.

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  • 119. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Observation of e(+)e(-) -> pi(+) pi(-)psi(3770) and D-1(2420)(0)(D)over-bar(0) + c.c2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 3, article id 032005Article in journal (Refereed)
    Abstract [en]

    Several intermediate states of the reaction channels e(+)e(-) -> pi(+)pi(-) D-0(D) over bar (0) and e(+)e(-) -> pi(+)pi-D+D- are studied using the data samples collected with the BESIII detector at center-of-mass energies above 4.08 GeV. For the first time in this final state, a psi(3770) signal is seen in the DD invariant mass spectrum, with a statistical significance of 5.2 sigma at root s = 4.42 GeV. There is also evidence for this resonance at root s = 4.26 and 4.36 GeV with statistical significance of 3.2 sigma and 3.3 sigma, respectively. In addition, the Born cross section of e(+)e(-) ->pi(+)pi(-)psi(3770) is measured. The proposed heavy-quark-spin-symmetry partner of the X(3872), the state X-2(4013), is also searched for in the D (D) over bar invariant mass spectra. No obvious signal is found. The upper limit of the Born cross section of the process e(+)e(-) -> rho X-0(2)(4013) combined with the branching fraction is measured. Also, the processes e(+)e(-) -> D-1(2420)(D) over bar c.c. are investigated. The neutral mode with D-1(2420)(0) -> D-0 pi(+)pi(-) is reported with statistical significance of 7.4 sigma at root s = 4.42 GeV for the first time, and evidence with statistical significance of 3.2 sigma and 3.3 sigma at root s = 4.36 and 4.60 GeV is seen, respectively. No evident signal for the process e(+)e(-) -> D-1(2420)(0)(D) over bar (0) + c.c., D-1(2420)(0) -> D*(+)pi(-) is reported. Evidence for e(+)e(-) -> D-1(2420)+D- + c.c., D-1(2420)(+) -> D+pi(+)pi(-) is reported with statistical significance of 3.1 sigma and 3.0 sigma at root s. = 4.36 and 4.42 GeV, respectively.

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    FULLTEXT01
  • 120. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Observation of psi(3686) -> p(p)over-bar phi2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 11, article id 112010Article in journal (Refereed)
    Abstract [en]

    Using a data sample of 4.48 x 10(8) psi(3686) events collected with the BESIII detector, we present a first observation of psi(3686) -> p (p) over bar phi, and we measure its branching fraction to be [6.06 +/- 0.38(stat)+/- 0.48(syst)] x 10(-6). In contrast to the earlier discovery of a threshold enhancement in the p (p) over bar -mass spectrum of the channel j/psi -> gamma p (p) over bar, denoted as X(p (p) over bar), we do not find a similar enhancement in psi(3686) -> p (p) over bar phi. An upper limit of 1.82 x 10(-7) at the 90% confidence level on the branching fraction of psi(3686) -> X(p (p) over bar)phi -> p (p) over bar phi is obtained.

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    FULLTEXT01
  • 121. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Observation of psi(3886) -> Xi(1530)(-)(Xi)over-bar(1530)(+) and Xi(1530)(-)(Xi)over-bar(+)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 5, article id 051101Article in journal (Refereed)
    Abstract [en]

    Using 448.1 x 10(6) psi(3686) events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of psi(3686) -> Xi(1530)(-)(Xi) over bar (1530)(+) and Xi(1530)(-)(Xi) over bar (+) decays with a statistical significance of more than 10 sigma and 5.0 sigma, respectively. The branching fractions are measured to be B(psi(3686) -> Xi(1530)(-)(Xi) over bar (1530)(+)) = (11.45 +/- 0.40 +/- 0.59) x 10(-5) and B(psi(3686) -> Xi(1530)(-)(Xi) over bar (+)) = (0.70 +/- 0.11 +/- 0.04) x 10(-5). The angular distribution parameter for psi(3686) -> Xi(1530)(-)(Xi) over bar (1530)(+) is determined to be alpha = 0.40 +/- 0.24 +/- 0.06, which agrees with the theoretical predictions within 1 sigma. The first uncertainties are statistical, and the second systematic.

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    FULLTEXT01
  • 122.
    Ablikim, M.
    et al.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Inst High Energy Phys, Beijing 100049, Peoples R China.
    Observation of the semimuonic decay D+→ωμ+νμ2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 7, article id 072005Article in journal (Refereed)
    Abstract [en]

    We report the first observation of the semimuonic decay D+ -> omega mu(+)upsilon(mu) using an e(+)e(-) collision data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected with the BESIII detector at a center-of-mass energy of 3.773 GeV. The absolute branching fraction of the D+ -> omega mu(+)upsilon(mu) decay is measured to be BD+ -> omega mu(+)upsilon mu = (17.7 +/- 1.8(stat) +/- 1.1(syst)) x 10(-4). Its ratio with the world average value of the branching fraction of the D+ -> omega e(+)upsilon(mu) decay probes lepton flavor universality and it is determined to be BD+ -> omega mu(+)upsilon mu/BD+ -> omega mu(+)upsilon e(PDG) = 1.05 +/- 0.14, in agreement with the standard model expectation within one standard deviation.

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  • 123. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Partial wave analysis of psi(3686) -> K+ K- eta2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 3, article id 032008Article in journal (Refereed)
    Abstract [en]

    Using a sample of (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, we perform the first partial wave analysis of psi(3686) -> K+K- eta. In addition to the well established states, phi(1020), phi(1680), and K-3(*)(1780), contributions from X(1750), rho(2150), rho(3)(2250), and K-2* (1980) are also observed. The X(1750) state is determined to be a 1(--) resonance. The simultaneous observation of the phi(1680) and X(1750) indicates that the X(1750), with previous observations in photoproduction, is distinct from the phi(1680). The masses, widths, branching fractions of psi(3686) -> K+K- eta, and the intermediate resonances are also measured.

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    FULLTEXT01
  • 124. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Search for baryon and lepton number violating decays D+ -> (Lambda)over-bar((Sigma)over-bar(0))e(+) and D+ -> Lambda(Sigma(0))e(+)2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 3, article id 031102Article in journal (Refereed)
    Abstract [en]

    Using a 2.93 fb(-1) data sample of electron-positron collisions taken with the BESIII detector at a center-of-mass energy of 3.773 GeV, which corresponds to (8296 +/- 31 +/- 64) x 10(3) D+ D- pairs, we search for the baryon and lepton number violating decays D+ -> (Lambda) over bar((Sigma) over bar (0))e(+) and D+ -> Lambda(Sigma(0))e(+). No obvious signals are found with the current statistics and upper limits on the branching fractions of these four decays are set at the level of 10(-6) at 90% confidence level.

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    FULLTEXT01
  • 125. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Search for the decay D-s(+) -> p(p)over-bare(+) nu(e)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 11, article id 112008Article in journal (Refereed)
    Abstract [en]

    Using a 3.19 fb(-1) data sample collected at the root s = 4.178 GeV with the BESIII detector, we search for the rare decay D-s(+) -> p (p) over bare(+)nu(e). No significant signal is observed, and an upper limit of B(D-s(+) -> p (p) over bare(+)nu(e)) < 2.0 x 10(-4) is set at the 90% confidence level. This measurement is useful input in understanding the baryonic transition of D-s(+) mesons.

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  • 126. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Study of e(+)e(- )-> pi(+)pi(-)pi(0)eta(c) and evidence for Z(c) (3900)(+/-) decaying into rho(+/-)eta(c)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 11, article id 111102Article in journal (Refereed)
    Abstract [en]

    We study the reaction e(+)e(-) -> pi(+)pi(-)pi(0)eta(c) for the first time using data samples collected with the BESIII detector at center-of-mass energies root s = 4.226, 4.258, 4.358, 4.416, and 4.600 GeV. Evidence of this process is found and the Born cross section sigma(B) (e(+)e(-) -> pi(+)pi(-)pi(0)eta(c)), excluding e(+)e(-) -> omega eta(c) and eta eta(c), is measured to be (46(-11)(+12) +/- 10) pb at root s = 4.226 GeV. Evidence for the decay Z(c) (3900)(+/-) -> rho(+/-)eta(c) is reported at root s = 4.226 GeV with a significance of 3.9 sigma, including systematic uncertainties, and the Born cross section times branching fraction sigma(B)(e(+)e(-) -> pi(-/+)Z(c) (3900)(+/-)) x B(Z(c)(3900)(+/-) -> rho(+/-)eta(c)) is measured to be (48 +/- 11 +/- 11) pb, which indicates that e(+) e(-)-> pi(-/+)Z(c) (3900)(+/-) -> pi(-/+)rho(+/-)eta(c) dominates the e(+) e(-) -> pi(+)pi(-)pi(0)eta(c) process. The Z(c)(3900)(+/-)->rho(+/-)eta(c) signal is not significant at the other center-of-mass energies and the corresponding upper limits are determined. In addition, no significant signal is observed in a search for Z(c) (4020)(+/-) -> rho(+/-)eta(c) with the same data samples. The ratios R-Zc(3900) = B(Z(c)(3900)(+/-) -> rho(+/-)eta(c))/B(Z(c)(3900)(+/-) -> pi(+/-)J/psi) and RZ(c)((4020)) = B(Z(c)(4020)(+/-) -> rho(+/-)eta(c))/B(Z(c)(4020)(+/-) -> pi(+/-)eta(c)) are obtained and compared with different theoretical interpretations of the Z(c)(3900)(+/-) and Z(c)(4020)(+/-).

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  • 127. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Study of the decays D-s(+ )-> (KSK+)-K-0 and (KLK+)-K-02019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 11, article id 112005Article in journal (Refereed)
    Abstract [en]

    Using an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 3.19 fb(-1) and collected at a center-of-mass energy root s = 4.178 GeV with the BESIII detector, we measure the absolute branching fractions B(D-s(+) -> (KSK+)-K-0) = (1.425 +/- 0.038(stat). +/- 0.031(syst).)% and B(D-s(+) -> (KLK+)-K-0) = (1.485 +/- 0.039(stat). +/- 0.046(syst).)%. The branching fraction of D-s(+) -> (KSK+)-K-0 is compatible with the world average and that of D-s(+) -> (KLK+)-K-0 is measured for the first time. We present the first measurement of the K-S(0)-K-L(0) asymmetry in the decays D-s(+) -> (KS,LK+)-K-0, and R((Ds+KS,LK+)-K-0) = B(D-s(+) -> (KSK+)-K-0)-B(D-s(+) -> (KLK+)-K-0)/B(D-s(+) -> (KSK+)-K-0)+B(D-s(+) -> (KLK+)-K-0) = (-2.1 +/- 1.9(stat). +/- 1.6(syst).)%. In addition, we measure the direct CP asymmetries A(CP) (D-s(+/-) -> (KSK +/-)-K-0). (0.6 +/- 2.8(stat). +/- 0.6(syst).)% and A(CP)(D-s(+/-) -> (KLK +/-)-K-0 ) = (-1.1 +/- 2.6(stat). +/- 0.6(syst))%.

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  • 128. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Study of the decays psi(3686) -> gamma chi(cJ) -> gamma(p)over-barK*(+)Lambda + c.c. and psi(3686) -> (p)over-barK*(+) Lambda plus c.c.2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 5, article id 052010Article in journal (Refereed)
    Abstract [en]

    Based on the data sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector at BEPCII, we present a study of the decays psi(3686) -> gamma chi(cJ) -> gamma(p) over barK*(+)Lambda + c.c. and psi(3686) -> (p) over barK*(+)Lambda + c.c. The branching fractions of chi(cJ )-> (p) over barK*(+)Lambda + c.c. (J = 0, 1, 2) are measured to be (4.8 +/- 0.7 +/- 0.5) x 10(-4), (5.0 +/- 0.5 +/- 0.4) x 10(-4), and (8.2 +/- 0.9 +/- 0.7) x 10(-4), respectively, where the first uncertainties are statistical and the second systematic. The branching fraction of psi(3686) -> (p) over barK*(+)Lambda + c.c. is measured to be (6.3 +/- 0.5 +/- 0.5) x 10(-5). All these decay modes are observed for the first time.

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  • 129. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Partial-wave analysis of J/psi -> K+ K- pi(0)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 3, article id 032004Article in journal (Refereed)
    Abstract [en]

    A partial-wave analysis of the decay J/psi -> K+ K- pi(0) has been made using (223.7 +/- 1.4) x 10(6) J/psi events collected with the BESIII detector in 2009. The analysis, which is performed within the isobar-model approach, reveals contributions from K-2* (1430)(+/-), K-2* (1980)(+/-) and K-4* (2045)(+/-) decaying to K-+/-pi(0). The two latter states are observed in J/psi decays for the first time. Two resonance signals decaying to K+ K- are also observed. These contributions cannot be reliably identified and their possible interpretations are discussed. The measured branching fraction B(J/psi -> K+ K- pi(0)) of (2.88 +/- 0.01 +/- 0.12) x 10(-3) is more precise than previous results. Branching fractions for the reported contributions are presented as well. The results of the partial-wave analysis differ significantly from those previously obtained by BESII and BABAR.

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  • 130. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Papenbrock, Michael
    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.
    Thorén, Viktor
    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.
    Observation of D+ -> eta eta pi(+) and improved measurement of D0(+) -> eta pi+ pi-((0))2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 5, article id 052009Article in journal (Refereed)
    Abstract [en]

    Using an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the absolute branching fractions of D+ -> eta eta pi(+), D+ -> eta pi(+pi 0), and D-0 ->eta pi(+) pi(-) to be (2.96 +/- 0.24 +/- 0.10+x10(-3), (2.23 +/- 0.15 +/- 0.10)x10(-3), and (1.20 +/- 0.07 +/- 0.04) x 10(-3), respectively, where the first uncertainties are statistical and the second ones are systematic. The D+ -> eta eta pi(+) decay is observed for the first time, and the branching fractions of D+(0) -> eta pi(+) pi(0(-)) are measured with much improved precision. In addition we test for CP asymmetries in the separated charge-conjugate branching fractions; no evidence of CP violation is found.

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  • 131. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Papenbrock, Michael
    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.
    Thorén, Viktor
    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.
    Observation of the decays chi(cJ) -> phi phi eta2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 1, article id 012012Article in journal (Refereed)
    Abstract [en]

    Using a data sample of (448.1 +/- 2.9) x 10( )(6)psi(3686) decays collected by the BESIII detector at the Beijing Electron Positron Collider (BEPCII), we observe the decays chi(cJ) -> phi phi eta (J = 0, 1, 2), where the chi(cJ) are produced via the radiative processes psi(3686) -> gamma chi(cJ) . The branching fractions are measured to be B(chi(c0) -> phi phi eta) = (8.41 +/- 0.74 +/- 0.62) x 10(-4), B(chi(c1) -> phi phi eta) = (2.96 +/- 0.43 +/- 0.22) x 10(-4), and B( chi(c2) -> phi phi eta) = (5.33 +/- 0.52 +/- 0.39) x 10(-4), where the first uncertainties are statistical, and the second are systematic. We also search for intermediate states in the phi phi or eta phi subsystems, but no significant structure is seen due to the limited statistics.

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  • 132. Ablikim, M.
    et al.
    Adlarson, Patrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Biernat, Jacek
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Ikegami Andersson, Walter
    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.
    Papenbrock, Michael
    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.
    Thorén, Viktor
    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.
    Search for the rare decay eta ' -> pi(0)pi(0)pi(0)pi(0) at BESIII2020In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 101, no 3, article id 032001Article in journal (Refereed)
    Abstract [en]

    Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a search for the rare decay if eta' -> 4 pi(0) via J/psi -> gamma eta'. No significant eta' signal is observed in the 4 pi(0) invariant mass spectrum. With a Bayesian approach, the upper limit on the branching fraction is determined to be B(eta' -> 4 pi(0)) < 4.94 x 10(-5) at the 90% confidence level, which is a factor of 6 smaller than the previous experimental limit.

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  • 133. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Thorén, Viktor
    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.
    Search for the decay D-s(+) -> gamma e (+) nu(e)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 7, article id 072002Article in journal (Refereed)
    Abstract [en]

    A search for the rare radiative leptonic decay D-s(+) -> gamma e(+)nu(e) is performed for the first time using electron-positron collision data corresponding to an integrated luminosity of 3.19 fb(-1), collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. No evidence for the D-s(+) -> gamma e(+)nu(e) decay is seen, and an upper limit of beta(D-s(+) -> gamma e(+)nu(e)) < 1.3 x 10(-4) is set on the partial branching fraction at a 90% confidence level for radiative photon energies E-gamma* > 0.01 GeV.

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    fulltext
  • 134. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Dalitz plot analysis of the decay ω→π+π−π02018In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 98, no 11, article id 112007Article in journal (Refereed)
    Abstract [en]

    Using a low-background sample of 2.6 x 10(5) J/psi -> omega eta(omega -> pi(+) pi(-) pi(0), eta -> gamma gamma) events, about 5 times larger statistics than previous experiments, we present a Dalitz plot analysis of the decay omega -> pi(+) pi(-) pi(0). It is found that the Dalitz plot distribution differs from the pure P-wave phase space with a statistical significance of 18.9 sigma. The parameters from the fit to data are in reasonable agreement with those without the cross-channel effect within the dispersive framework, which indicates that the cross-channel effect in omega -> pi(+) pi(-) pi(0) is not significant.

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    fulltext
  • 135. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Measurement of e(+) e(-) -> K+ K- cross section at root s=2.00-3.08 GeV2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 3, article id 032001Article in journal (Refereed)
    Abstract [en]

    The cross section of the process e(+) e(-) -> K+ K- is measured at a number of center-of-mass energies root s from 2.00 to 3.08 GeV with the BESIII detector at the Beijing Electron Positron Collider (BEPCII). The results provide the best precision achieved so far. A resonant structure around 2.2 GeV is observed in the cross section line shape. A Breit-Wigner fit yields a mass of M = 2239.2 +/- 7.1 +/- 11.3 MeV/c(2) and a width of Gamma = 139.8 +/- 12.3 +/- 20.6 MeV, where the first uncertainties are statistical and the second ones are systematic. In addition, the timelike electromagnetic form factor of the kaon is determined at the individual center-of-mass energy points.

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    fulltext
  • 136.
    Ablikim, M.
    et al.
    Inst High Energy Phys, Beijing, Peoples R China.
    Andersson, Walter Ikegami
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
    Johansson, Tord
    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.
    Papenbrock, Michael
    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.
    Inst High Energy Phys, Beijing, Peoples R China.
    Measurement of the absolute branching fractions of Lambda(+)(c) -> Lambda eta pi(+) and Sigma(1385) (+) eta2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 3, article id 032010Article in journal (Refereed)
    Abstract [en]

    We study the decays Lambda(+)(c) -> Lambda eta pi(+) and Sigma(1385)(+)eta based on Lambda(+)(c)(Lambda) over bar (c) pairs produced in e(+)e(-) collisions at a center-of-mass energy of root s = 4.6 GeV, corresponding to an integrated luminosity of 567 pb(-1). The data sample was accumulated with the BESIII detector at the BEPCII collider. The branching fractions are measured to be beta(Lambda(+)(c) -> Lambda eta pi(+)) = (1.84 +/- 0.21 (stat) +/- 0.15(syst))% and B(Lambda(+)(c) -> Sigma(1385)(+) eta) = (0.91 +/- 0.18 (stat) +/- 0.09 (syst))%, constituting the most precise measurements to date.

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    fulltext
  • 137. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Measurement of B(J/ψ→η'e+e−) and search for a dark photon2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 1, article id 012013Article in journal (Refereed)
    Abstract [en]

    Using a data sample of (1310.6 +/- 7.0) x 10(6) J/psi decay events collected with the BESIII detector at BEPCII, we study the electromagnetic Dalitz decay J/psi -> eta ' e(+)e(-) with two dominant eta' decay modes, eta' -> gamma pi(+)pi(-) and eta' -> pi(+)pi(-)eta . The branching fraction is determined to be B(J/psi -> eta ' e(+)e(-)) = (6.59 +/- 0.07 +/- 0.17) x 10(-5), which improves in precision by a factor of 2 over the previous BESIII measurement. A search for the dark photon (gamma') is performed via J/psi -> eta'gamma',gamma' -> e(+)e(-). Excluding the w and phi mass regions, no significant signal is observed in the mass range from 0.1 to 2.1 GeV/e2. We set upper limits at the 90% confidence level on B(J/psi -> eta 'gamma') x B(gamma' -> e(+)e(-)), B(J/psi -> eta 'gamma') and the mixing strength as a function of dark photon mass. This is among the first searches for dark photons in charmonium decays.

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  • 138. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Measurements of the absolute branching fractions and CP asymmetries for D+ -> (KS,LK+)-K-0 (pi(0))2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 3, article id 032002Article in journal (Refereed)
    Abstract [en]

    Using e(+)e(-) collision data corresponding to an integrated luminosity of 2.93 fb(-1) taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions B(D+ -> (KSK+)-K-0) = (3.02 +/- 0.09 +/- 0.08) x 10(-3), B(D+ -> (KSK+)-K-0 pi(0)) = (5.07 +/- 0.19 +/- 0.23) x 10(-3), B(D+ -> (KLK+)-K-0) = (3.21 +/- 0.11 +/- 0.11) x 10(-3), and B(D+ -> (KLK+)-K-0 pi(0)) = (5.24 +/- 0.22 +/- 0.22) x 10(-3), where the first and second uncertainties are statistical and systematic, respectively. The branching fraction B(D+ -> (KSK+)-K-0) is consistent with the world average value and the other three branching fractions are measured for the first time. We also measure the CP asymmetries for the four decays and do not find a significant deviation from zero.

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  • 139. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Observation of chi(cJ) -> 4K(S)(0)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 5, article id 052008Article in journal (Refereed)
    Abstract [en]

    By analyzing (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector operating at the BEPCII collider, the decays of chi(c)(J) -> 4K(S)(0) (J = 0, 1, 2) are observed for the first time with statistical significances of 26.5 sigma, 5.9 sigma and 11.4 sigma, respectively. The product branching fractions of psi(3686) -> gamma chi(cJ), chi(cJ) -> 4K(S)(0 )are presented, and the branching fractions of chi(cJ) -> 4K(S)(0) decays are determined to be B-chi c0 -> 4KS0 = (5.76 +/- 0.34 +/- 0.38) x 10(-4), B-chi c1 -> 4KS0 = (0.35 +/- 0.09 +/- 0.03) x 10(-4) and B-chi c2 -> 4KS0( )= (1.14 +/- 0.15 +/- 0.08) x 10(-4), where the first uncertainties are statistical and the second are systematic, respectively.

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  • 140. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Observation of D0(+) -> K-S(0)pi(0(+))eta ' and improved measurement of D-0 -> K-pi(+)eta '2018In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 98, no 9, article id 092009Article in journal (Refereed)
    Abstract [en]

    By analyzing an e(+)e(-) data sample corresponding to an integrated luminosity of 2.93 fb(-1) taken at a centerof- mass energy of 3.773 GeV with the BESIII detector, we measure the branching fractions of the Cabibbofavored hadronic decays D-0 -> K- pi' eta', D-0 -> K-s(0)pi(0)eta', which are determined to be (6.43 +/- 0.15(stat)+/- 0.31(syst)) x 10(-3), (2.52 +/- 0.22(stat) +/- 0.15(syst)) x 10(-3,) and (1.90 +/- 0.17(stat) +/- 0.13(syst)) x 10(-3), respectively. The precision of the branching fraction of D-0 -> K- pi(+) eta' is significantly improved, and the processes D-0 -> K-S(0)pi(0)eta' and D+ -> K-S(0) pi(+)eta' are observed for the first time.

  • 141. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Observation of D-s(+) -> p(n)over-bar and confirmation of its large branching fraction2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 3, article id 031101Article in journal (Refereed)
    Abstract [en]

    The baryonic decay D-s(+) -> p (n) over bar is observed, and the corresponding branching fraction is measured to be (1.21 +/- 0.10 +/- 0.05) x 10(-3), where the first uncertainty is statistical and second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the BEPCII e(+)e(-) double-ring collider with a center-of-mass energy of 4.178 GeV and an integrated luminosity of 3.19 fb(-1). The result confirms the previous measurement by the CLEO Collaboration and is of greatly improved precision. This result will improve our understanding of the dynamical enhancement of the W-annihilation topology in the charmed meson decays.

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  • 142. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Observation of e(+) e(-) -> eta Y(2175) at center-of-mass energies above 3.7 GeV2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 1, article id 012014Article in journal (Refereed)
    Abstract [en]

    The state Y(2175) is observed in the process e(+)e(-) -> eta Y(2175) with a statistical significance larger than 10 standard deviations using the data collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies between 3.7 and 4.6 GeV. This is the first observation of the Y(2175) in this process. The mass and width of the Y(2175) are determined to be (2135 +/- 8 +/- 9) MeV/e(2) and (104 +/- 24 +/- 12) MeV, respectively, and the production cross section (sigma) of e(+)e(-) -> eta Y(2175) -> eta phi f(0)(980) -> eta phi pi(+)pi(-) is at the several hundred femtobarn level. No significant signal for the process e(+)e(-) -> eta'Y(2175) is observed and the upper limit on sigma(e(+)e(-) -> eta'Y(2175))/sigma(e(+)e(-) -> eta Y(2175)) is estimated to be 0.43 at the 90% confidence level. We also search for psi(3686) -> eta Y(2175). No significant signal is observed, indicating a strong suppression relative to the corresponding J/psi decay, in violation of the "129% rule".

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  • 143. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Observation of OZI-suppressed decays chi(cJ) -> omega phi2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 1, article id 012015Article in journal (Refereed)
    Abstract [en]

    Decays chi(cJ)(J = 0, 1, 2) -> omega phi are studied using (448.1 +/- 2.9) x 10(6)psi(3686) events collected with the BESIII detector in 2009 and 2012. In addition to the previously established chi(c0) -> omega phi, the first observation of chi(c1) -> omega phi is reported in this paper. The measured product branching fractions are B(psi(3686) -> gamma chi(c0)) x B(chi(c0) -> omega phi) = (13.83 +/- 0.70 +/- 1.01) x 10(-6) and B(psi(3686) -> gamma chi(c1)) x B(chi(c1) -> omega phi) = (2.67 +/- 0.31 +/- 0.27) x 10(-6), and the absolute branching fractions are B(chi(c0) -> omega phi) = (13.84 +/- 0.70 +/- 1.08) x 10(-5) and B(chi(c1) -> omega phi) = (2.80 +/- 0.32 +/- 0.30) x 10(-5). We also find strong evidence for chi(c2) -> omega phi with a statistical significance of 4.8 sigma, and the corresponding product and absolute branching fractions are measured to he B(psi(3686) -> gamma chi(c2)) x B(chi(c2) -> omega phi) = (0.91 +/- 0.23 +/- 0.12) x 10(-6) and B(chi(c2) -> omega phi) = (1.00 +/- 0.25 +/- 0.14) x 10(-5). Here, the first errors are statistical and the second ones systematic.

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  • 144. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Observation of psi(3686) -> p(p)over-bar eta ' and improved measurement of J/psi -> p(p)over-bar eta '2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 3, article id 032006Article in journal (Refereed)
    Abstract [en]

    We observe the process psi(3686) -> p (p) over bar eta' for the first time, with a statistical significance higher than 10 sigma, and measure the branching fraction of J/psi -> p (p) over bar eta' with an improved accuracy compared to earlier studies. The measurements are based on 4.48 x 10(8) psi(3686) and 1.31 x 10(9) J/psi events collected by the BESIII detector operating at the BEPCII. The branching fractions are determined to be B(psi(3686) -> p (p) over bar eta') = (1.10 +/- 0.10 +/- 0.08) x 10(-5) and B(J/psi -> p (p) over bar eta' = (1.26 +/- 0.02 +/- 0.07) x 10(-4), where the first uncertainties are statistical and the second ones systematic. Additionally, the eta - eta' mixing angle is determined to be -24 degrees +/- 11 degrees based on psi(3686) -> p (p) over bar eta', and -24 degrees +/- 9 degrees based on J/psi -> p (p) over bar eta', respectively.

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  • 145. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Search for a strangeonium-like structure Z(s) decaying into phi pi and a measurement of the cross section e(+)e(-) -> phi pi pi2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 1, article id 011101Article in journal (Refereed)
    Abstract [en]

    Using a data sample of e(+)e(-) collision data corresponding to an integrated luminosity of 108 pb(-1) collected with the BESIII detector at a center-of-mass energy of 2.125 GeV, we study the process e(+)e(-) -> phi pi pi and search for a strangeoniumlike structure Z(s) decaying into phi pi. No signal is observed in the phi pi mass spectrum. Upper limits on the cross sections for Z(s) production at the 90% confidence level are determined. In addition, the cross sections of e(+)e(-) -> phi pi(+)pi(-) and e(+)e(-) -> phi pi(0)pi(0) at 2.125 GeV are measured to be (436.2 +/- 6.4 +/- 30.1) pb and (237.0 +/- 8.6 +/- 15.4) pb, respectively, where the first uncertainties are statistical and the second systematic.

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  • 146. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Search for rare decay J/psi -> phi e(+)e(-)2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 5, article id 052010Article in journal (Refereed)
    Abstract [en]

    Using a data sample of 448.1 x 10(6) psi(3686) events collected at root s = 3.686 GeV with the BESIII detector at the Beijing Electron-Positron Collider II, we search for the rare decay J/psi -> phi e(+)e(-) via psi(3686) -> pi(+)pi(-) J/psi. No signal events are observed and the upper limit on the branching fraction is set to be B(J/psi -> phi e(+)e(-)) < 1.2 x 10(-7) at the 90% confidence level, which is still about one order of magnitude higher than the Standard Model prediction.

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  • 147.
    Ablikim, M.
    et al.
    Institute of High Energy Physics, Beijing 100049, People’s Republic of China.
    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.
    Li, Cui
    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.
    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.
    Institute of High Energy Physics, Beijing 100049, People’s Republic of China.
    Study of electromagnetic Dalitz decays chi(cJ )-> mu(+)mu(-) J/psi2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 5, article id 051101Article in journal (Refereed)
    Abstract [en]

    Using 4.48 x 10(8) psi(3686) events collected with the BESIII detector, we search for the decays chi(cJ) ->mu(+)mu(- )J/psi through the radiative decays psi(3686) -> gamma chi(cJ), where J = 0, 1, 2. The decays chi(c1,2) -> mu(+)mu(-)J/psi are observed, and the corresponding branching fractions arc measured to be B(chi(c1) -> mu(+)mu(-) J/psi) = (2.51 +/- 0.18 +/- 0.20) x 10(-4) and B(chi(c2 )-> mu(+)mu(- )J/psi) = (2.33 +/- 0.18 +/- 0.29) x 10(-4), where the first uncertainty is statistical and the second one systematic. No significant chi(c0 )-> mu(+)mu(- )J/psi decay is observed, and the upper limit on the branching fraction is determined to be 2.0 x 10(-5) at 90% confidence level. Also, we present a study of dimuon invariant mass dependent transition form factor for the decays chi(c1,2 )->mu(+)mu(- )J/psi.

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  • 148. Ablikim, M.
    et al.
    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.
    Li, Cui
    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.
    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.
    Study of the Dalitz decay J/psi -> e(+)e(-)eta2019In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 1, article id 012006Article in journal (Refereed)