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Double spin asymmetries of inclusive hadron electroproduction from a transversely polarized He 3 target
Zhao, YX Allada, K Aniol, K Annand, JRM Averett, T Benmokhtar, F Bertozzi, W Bradshaw, PC Bosted, P Camsonne, A
Zhao, YX
Allada, K
Aniol, K
Annand, JRM
Averett, T
Benmokhtar, F
Bertozzi, W
Bradshaw, PC
Bosted, P
Camsonne, A
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Journal Article
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2015-07-14
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10.1103/PhysRevC.92.015207
Abstract
© 2015 American Physical Society. We report the measurement of beam-target double spin asymmetries (A LT) in the inclusive production of identified hadrons, e + 3 He → h + X, using a longitudinally polarized 5.9-GeV electron beam and a transversely polarized He 3 target. Hadrons (π ±, K ±, and proton) were detected at 16 with an average momentum P h = 2.35 GeV/c and a transverse momentum (p T) coverage from 0.60 to 0.68 GeV/c. Asymmetries from the He 3 target were observed to be nonzero 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 A LT in semi-inclusive deep-inelastic scattering.
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Physical Review C - Nuclear Physics
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