Exclusive electroproduction at GeV with CLAS and transversity generalized parton distributions
Journal Article
·
· Physical Review C
The cross section of the exclusive η electroproduction reaction ep → e p η was measured at Jefferson Laboratory with a 5.75 GeV electron beam and the CLAS detector.Differential cross sections d4σ/dtdQ2dxBdφη and structure functions σU = σT+ σL, σT T , and σLT , as functions of t , were obtained over a wide range of Q2 and xB. The η structure functions are compared with those previously measured for π0 at the same kinematics. At low t , both π0 and η are described reasonably well by generalized parton distributions (GPDs) in which chiral-odd transversity GPDs are dominant. The π0 and η data, when taken together, can facilitate the flavor decomposition of the transversity GPDs.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Argonne National Lab. (ANL), Argonne, IL (United States); George Washington Univ., Washington, DC (United States); Mississippi State Univ., Starkville, MS (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); Centre National de la Recherche Scientifique (CNRS); Commissariat a l’Energie Atomique (CEA); Instituto Nazionale di Fisica Nucleare (INFN); National Research Foundation of Korea (NRF); United Kingdom Science and Technology Facilities Council
- Contributing Organization:
- CLAS Collaboration
- Grant/Contract Number:
- AC05-06OR23177; AC02-06CH11357; SC0016583; FG02-07ER41528
- OSTI ID:
- 1347207
- Alternate ID(s):
- OSTI ID: 1346588; OSTI ID: 1375903; OSTI ID: 1439801
- Report Number(s):
- JLAB-PHY-16-2330; DOE/OR/23177-3920; PRVCAN; TRN: US1700628
- Journal Information:
- Physical Review C, Vol. 95, Issue 3; ISSN 2469-9985
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 10 works
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