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Title: Double spin asymmetries of inclusive hadron electroproductions from a transversely polarized ³He target

We report the measurement of beam-target double-spin asymmetries ALT in the inclusive production of identified hadrons, e +³He → h + X, using a longitudinally polarized 5.9 GeV electron beam and a transversely polarized ³He target. Hadrons (π±, K± and proton) were detected at 16° with an average momentum h>=2.35 GeV/c and a transverse momentum (pT) coverage from 0.60 to 0.68 GeV/c. Asymmetries from the ³He target were observed to be non-zero for π± production when the target was polarized transversely in the horizontal plane. The π⁺ and π⁻ asymmetries have opposite signs, analogous to the behavior of ALT in semi-inclusive deep-inelastic scattering.
Authors:
 [1]
  1. University of Science and Technology of China, Hefei (People's Republic of China). et al.
Publication Date:
OSTI Identifier:
1193632
Report Number(s):
JLAB-PHY--15-2027; DOE/OR/23177--3331; arXiv:1502.01394
Journal ID: ISSN 0556-2813; PRVCAN
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 1; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
Jefferson Lab Hall A Collaboration
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS