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Neutron-proton scattering in the context of the d*(2380) resonance
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
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2014 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 90, no 3, 035204- p.Article in journal (Refereed) Published
Abstract [en]

New data on quasifree polarized neutron-proton scattering in the region of the recently observed d* resonance structure are obtained by exclusive and kinematically complete high-statistics measurements with WASA at COSY. This paper details the determination of the beam polarization, checks of the quasifree character of the scattering process, on all obtained Ay angular distributions and on the new partial-wave analysis, which includes the new data producing a resonance pole in D-3(3)-(3)G(3) coupled partial waves at (2380 +/- 10 - i40 +/- 5) MeV-in accordance with the d* dibaryon resonance hypothesis. The effect of the new partial-wave solution on the description of total and differential cross-section data as well as specific combinations of spin-correlation and spin-transfer observables available from COSY-ANKE measurements at T-d = 2.27 GeV is discussed.

Place, publisher, year, edition, pages
2014. Vol. 90, no 3, 035204- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-235170DOI: 10.1103/PhysRevC.90.035204ISI: 000342139500007OAI: oai:DiVA.org:uu-235170DiVA: diva2:761212
Available from: 2014-11-05 Created: 2014-10-29 Last updated: 2014-11-05Bibliographically approved

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Adlarson, PatrikCalén, HansFransson, Kjell EHeijkenskjöld, LenaHöistad, BoJohansson, TordKupsc, AndrzejMarciniewski, PawelWolke, Magnus
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