Studies of 3D structure of the nucleon with CLAS at Jlab
Studies of single-spin asymmetries in pions electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized and polarized targets, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility, are presented. A substantial sin phih amplitude has been measured in the the cross section as a function of the azimuthal angle phih of the produced neutral pion. The dependence of this amplitude on Bjorken x and on the pion transverse momentum has been extracted with significantly higher precision than previous data and is compared to model calculations.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1031554
- Report Number(s):
- JLAB-PHY-11-1449; DOE/OR/23177-1927; TRN: US1200134
- Journal Information:
- AIP Conf. Proc., Vol. 1418; Conference: PacSpin2011, June 20-24, 2011, Cairns, QLD, Australia
- Country of Publication:
- United States
- Language:
- English
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