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Single spin asymmetries in charged kaon production from semi-inclusive deep inelastic scattering on a transversely polarized He 3 target

  • Y. X. Zhao*
  • , Y. Wang
  • , K. Allada
  • , K. Aniol
  • , J. R.M. Annand
  • , T. Averett
  • , F. Benmokhtar
  • , W. Bertozzi
  • , P. C. Bradshaw
  • , P. Bosted
  • , A. Camsonne
  • , M. Canan
  • , G. D. Cates
  • , C. Chen
  • , J. P. Chen
  • , W. Chen
  • , K. Chirapatpimol
  • , E. Chudakov
  • , E. Cisbani
  • , J. C. Cornejo
  • F. Cusanno, M. M. Dalton, W. Deconinck, C. W. De Jager, R. De Leo, X. Deng, A. Deur, H. Ding, P. A.M. Dolph, C. Dutta, 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, D. W. Higinbotham, T. Holmstrom, J. Huang, M. Huang, H. F. Ibrahim, M. Iodice, X. Jiang, G. Jin, M. K. Jones, J. Katich, A. Kelleher, W. Kim, A. Kolarkar, W. Korsch, J. J. Lerose, X. Li, Y. Li, R. Lindgren, N. Liyanage, E. Long, H. J. Lu, D. J. 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, J. C. Peng, S. K. Phillips, M. Posik, A. J.R. Puckett, X. Qian, Y. Qiang, A. Rakhman, R. Ransome, S. Riordan, A. Saha, B. Sawatzky, E. Schulte, A. Shahinyan, M. H. Shabestari, S. Širca, S. Stepanyan, R. Subedi, V. Sulkosky, L. G. Tang, A. Tobias, G. M. Urciuoli, I. Vilardi, K. Wang, B. Wojtsekhowski, X. Yan, H. Yao, Y. Ye, Z. Ye, L. Yuan, X. Zhan, Y. Zhang, Y. W. Zhang, B. Zhao, X. Zheng, L. Zhu, X. Zhu, X. Zong
*Corresponding author for this work
  • University of Science and Technology of China
  • University of Illinois at Urbana-Champaign
  • Massachusetts Institute of Technology
  • Thomas Jefferson National Accelerator Facility
  • California State University Los Angeles
  • University of Glasgow
  • College of William and Mary
  • Duquesne University
  • Old Dominion University
  • University of Virginia
  • Hampton University
  • Duke University
  • National Institute for Nuclear Physics
  • Istituto Superiore di Sanita
  • University of Bari
  • University of Kentucky
  • Mississippi State University
  • Rutgers - The State University of New Jersey, New Brunswick
  • NASU - Kharkov Institute of Physics and Technology
  • Los Alamos National Laboratory
  • Longwood University
  • Brookhaven National Laboratory
  • Cairo University
  • Kyungpook National University
  • China National Nuclear Corporation
  • Kent State University
  • University of New Hampshire
  • Florida International University
  • University of Massachusetts
  • Temple University
  • Université Clermont Auvergne
  • Seoul National University
  • Carnegie Mellon University
  • California Institute of Technology
  • Syracuse University
  • A. Alikhanian Yerevan Institute of Physics
  • University of Ljubljana
  • Lanzhou University

Research output: Contribution to journalArticlepeer-review

Abstract

We report the first measurement of target single spin asymmetries of charged kaons produced in semi-inclusive deep inelastic scattering of electrons off a transversely polarized He3 target. Both the Collins and Sivers moments, which are related to the nucleon transversity and Sivers distributions, respectively, are extracted over the kinematic range of 0.1<xbj<0.4 for K+ and K- production. While the Collins and Sivers moments for K+ are consistent with zero within the experimental uncertainties, both moments for K- favor negative values. The Sivers moments are compared to the theoretical prediction from a phenomenological fit to the world data. While the K+ Sivers moments are consistent with the prediction, the K- results differ from the prediction at the 2-sigma level.

Original languageEnglish
Article number055201
JournalPhysical Review C - Nuclear Physics
Volume90
Issue number5
DOIs
Publication statusPublished - 3 Nov 2014
Externally publishedYes

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