Double spin asymmetries of inclusive hadron electroproduction from a transversely polarized He 3 target
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.
Zhao, YX; Allada, K; Aniol, K; Annand, JRM; Averett, T; Benmokhtar, F; Bertozzi, W; Bradshaw, PC; Bosted, P; Camsonne, A; Canan, M; Cates, GD; Chen, C; Chen, JP; Chen, W; Chirapatpimol, K; Chudakov, E; Cisbani, E; Cornejo, JC; Cusanno, F; Dalton, M; Deconinck, W; De Jager, CW; De Leo, R; Deng, X; Deur, A; Ding, H; Dolph, PAM; Dutta, C; Dutta, D; El Fassi, L; Frullani, S; Gao, H; Garibaldi, F; Gaskell, D; Gilad, S; Gilman, R; Glamazdin, O; Golge, S; Guo, L; Hamilton, D; Hansen, O; Higinbotham, DW; Holmstrom, T; Huang, J; Huang, M; Ibrahim, HF; Iodice, M; Jiang, X; Jin, G; Jones, MK; Katich, J; Kelleher, A; Kim, W; Kolarkar, A; Korsch, W; Lerose, JJ; Li, X; Li, Y; Lindgren, R; Liyanage, N; Long, E; Lu, HJ; Margaziotis, DJ; Markowitz, P; Marrone, S; McNulty, D; Meziani, ZE; Michaels, R; Moffit, B; Muñoz Camacho, C; Nanda, S; Narayan, A; Nelyubin, V; Norum, B; Oh, Y; Osipenko, M; Parno, D; Peng, JC; Phillips, SK; Posik, M; Puckett, AJR; Qian, X; Qiang, Y; Rakhman, A; Ransome, R; Riordan, S; Saha, A; Sawatzky, B; Schulte, E; Shahinyan, A; Shabestari, MH; Širca, S; Stepanyan, S; Subedi, R; Sulkosky, V; Tang, LG; Tobias, WA; Urciuoli, GM; Vilardi, I
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