Measurement of "pretzelosity" asymmetry of charged pion production in semi-inclusive deep inelastic scattering on a polarized [superscript 3]He target

• Main Authors: Zhang, Y. (Author), Qian, X. (Author), Dutta, C. (Author), Huang, J. (Contributor), Katich, J. (Author), Wang, Y. (Author), Aniol, K. (Author), Annand, J. R. M (Author), Averett, T. (Author), Benmokhtar, F. (Author), Bradshaw, P. C. (Author), Bosted, P. (Author), Camsonne, A. (Author), Canan, M. (Author), Cates, G. D. (Author), Chen, C. (Author), Chen, J.-P (Author), Chen, W. (Author), Chirapatpimol, K. (Author), Chudakov, E. (Author), Cisbani, E. (Author), Cornejo, J. C. (Author), Cusanno, F. (Author), Dalton, M. M. (Author), Deconinck, Wouter (Contributor), de Jager, C. W. (Author), De Leo, R. (Author), Deng, X. (Author), Deur, A. (Author), Ding, H. (Author), Dolph, P. A. M. (Author), Dutta, D. (Author), El Fassi, L. (Author), Frullani, S. (Author), Gao, H. (Author), Garibaldi, F. (Author), Gaskell, D. (Author), Gilman, R. (Author), Glamazdin, O. (Author), Golge, S. (Author), Guo, L. (Author), Hamilton, D. (Author), Hansen, O. (Author), Higinbotham, D. W. (Author), Holmstrom, T. (Author), Huang, M. (Author), Ibrahim, H. F. (Author), Iodice, M. (Author), Jiang, X. (Author), Jin, G. (Author), Jones, M. K. (Author), Kelleher, A. (Author), Kim, W. (Author), Kolarkar, A. (Author), Korsch, W. (Author), LeRose, J. J. (Author), Li, X. (Author), Li, Y. (Author), Lindgren, R. (Author), Liyanage, N. (Author), Long, E. (Author), Lu, H.-J (Author), Margaziotis, D. J. (Author), Markowitz, P. (Author), Marrone, S. (Author), McNulty, D. (Author), Meziani, Z.-E (Author), Michaels, R. (Author), Moffit, Bryan J. (Contributor), Munoz Camacho, C. (Author), Nanda, S. (Author), Narayan, A. (Author), Nelyubin, V. (Author), Norum, B. E. (Author), Oh, Y. (Author), Osipenko, M. (Author), Parno, D. (Author), Peng, J. C. (Author), Phillips, S. K. (Author), Posik, M. (Author), Puckett, A. J. R. (Contributor), Qiang, Y. (Author), Rakhman, A. (Author), Ransome, R. D. (Author), Riordan, S. (Author), Saha, A. (Author), Sawatzky, B. (Author), Schulte, E. (Author), Shahinyan, A. (Author), Shabestari, M. H. (Author), Širca, S. (Author), Stepanyan, S. (Author), Subedi, R. (Author), Sulkosky, V. (Contributor), Tang, L.-G (Author), Tobias, W. A. (Author), Urciuoli, G. M. (Author), Vilardi, I. (Author), Wang, K. (Author), Wojtsekhowski, B. (Author), Yan, X. (Author), Yao, H. (Author), Ye, Y. (Author), Ye, Z. (Author), Yuan, L. (Author), Zhan, X. (Contributor), Zhang, Y.-W (Author), Zhao, B. (Author), Zheng, X. (Author), Zhu, L. (Author), Zhu, X. (Author), Zong, X. (Author), Allada, Kalyan C. (Contributor), Bertozzi, William (Contributor), Gilad, Shalev (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2014-12-15T19:51:17Z.
• Subjects: Article
• Online Access: Get fulltext

An experiment to measure single-spin asymmetries of semi-inclusive production of charged pions in deep-inelastic scattering on a transversely polarized [superscript 3]He target was performed at Jefferson Laboratory in the kinematic region of 0.16 < x < 0.35 and 1.4 < Q[superscript 2] < 2.7 GeV[superscript 2]. Pretzelosity asymmetries on [superscript 3]He, which are expressed as the convolution of the h[⊥ over 1T] transverse-momentum-dependent distribution functions and the Collins fragmentation functions in the leading order, were measured for the first time. Under the effective polarization approximation, we extracted the corresponding neutron asymmetries from the measured [superscript 3]He asymmetries and cross-section ratios between the proton and [superscript 3]He. Our results show that both π[superscript ±] on [superscript 3]He and on neutron pretzelosity asymmetries are consistent with zero within experimental uncertainties.
National Science Foundation (U.S.)
United States. Dept. of Energy (Contract DE-AC05-06OR23177)
National Natural Science Foundation (China) (Grant 11135002)
National Natural Science Foundation (China) (Grant 11120101004)