作者
X Qian, K Allada, C Dutta, J Huang, J Katich, Y Wang, Y Zhang, K Aniol, JRM Annand, T Averett, F Benmokhtar, W Bertozzi, PC Bradshaw, P Bosted, A Camsonne, M Canan, GD Cates, C Chen, J-P Chen, W Chen, K Chirapatpimol, E Chudakov, E Cisbani, JC Cornejo, F Cusanno, MM Dalton, W Deconinck, CW De Jager, Raffaele De Leo, X Deng, A Deur, Hui Ding, PAM Dolph, D Dutta, L El Fassi, S Frullani, H Gao, F Garibaldi, D Gaskell, S Gilad, R Gilman, O Glamazdin, S Golge, L Guo, D Hamilton, O Hansen, DW Higinbotham, T Holmstrom, M Huang, HF Ibrahim, M Iodice, X Jiang, G Jin, MK Jones, A Kelleher, W Kim, A Kolarkar, W Korsch, JJ LeRose, Xiaojian Li, Y Li, R Lindgren, N Liyanage, E Long, H-J Lu, DJ Margaziotis, P Markowitz, S Marrone, D McNulty, Z-E Meziani, R Michaels, B Moffit, C Muñoz Camacho, S Nanda, A Narayan, V Nelyubin, B Norum, Y Oh, M Osipenko, D Parno, JC Peng, SK Phillips, M Posik, AJR Puckett, Y Qiang, A Rakhman, RD Ransome, S Riordan, A Saha, B Sawatzky, E Schulte, A Shahinyan, MH Shabestari, S Širca, S Stepanyan, R Subedi, V Sulkosky, L-G Tang, A Tobias, GM Urciuoli, I Vilardi, K Wang, B Wojtsekhowski, X Yan, H Yao, Y Ye, Z Ye, L Yuan, X Zhan, Y-W Zhang, B Zhao, X Zheng, L Zhu, X Zhu, X Zong, (Jefferson Lab Hall A Collaboration)
发表日期
2011/8/12
期刊
Physical Review Letters
卷号
107
期号
7
页码范围
072003
出版商
American Physical Society
简介
We report the first measurement of target single spin asymmetries in the semi-inclusive reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of with . The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The Collins moments for are consistent with zero, except for the moment at , which deviates from zero by . While the Sivers moments are consistent with zero, the Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to , and are largely consistent with the predictions of phenomenological fits and quark model calculations.
引用总数
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X Qian, K Allada, C Dutta, J Huang, J Katich, Y Wang… - Physical Review Letters, 2011