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- Title
Progress and opportunities in backward angle (u-channel) physics.
- Authors
Gayoso, C. Ayerbe; Bibrzycki, Ł.; Diehl, S.; Heppelmann, S.; Higinbotham, D. W.; Huber, G. M.; Kay, S. J. D.; Klein, S. R.; Laget, J. M.; Li, W. B.; Mathieu, V.; Park, K.; Perry, R. J.; Pire, B.; Semenov-Tian-Shansky, K.; Stanek, A.; Stevens, J. R.; Szymanowski, L.; Weiss, C.; Yu, B.-G.
- Abstract
Backward angle (u-channel) scattering provides complementary information for studies of hadron spectroscopy and structure, but has been less comprehensively studied than the corresponding forward angle case. As a result, the physics of u-channel scattering poses a range of new experimental and theoretical opportunities and questions. We summarize recent progress in measuring and understanding high energy reactions with baryon charge exchange in the u-channel, as discussed in the first Backward angle (u-channel) Physics Workshop. In particular, we discuss backward angle measurements and their theoretical description via both hadronic models and the collinear factorization approach, and discuss planned future measurements of u-channel physics. Finally, we propose outstanding questions and challenges for u-channel physics.
- Subjects
CHARGE exchange reactions; SCATTERING (Physics); PHYSICS; HADRONIC atoms; BARYONS
- Publication
European Physical Journal A -- Hadrons & Nuclei, 2021, Vol 57, Issue 12, p1
- ISSN
1434-6001
- Publication type
Article
- DOI
10.1140/epja/s10050-021-00625-2