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Left–right asymmetry for pion and kaon production in the semi-inclusive deep-inelastic scattering process

  • Bo Sun
  • Jun She
  • Bing Zhang
  • Ya-Jun Mao
  • Bo-Qiang MaEmail author
Regular Article - Theoretical Physics

Abstract

We analyze the left–right asymmetry in the semi-inclusive deep-inelastic scattering (SIDIS) process without introducing any weighting functions. With the current theoretical understanding, we find that the Sivers effect plays a key role in our analysis. We use the latest parametrization of the Sivers and fragmentation functions to reanalyze the π ± production process and find that the results are sensitive to the parametrization. We also extend our calculation on the K ± production, which can help us know more about the Sivers distribution of the sea quarks and the unfavored fragmentation processes. HERMES kinematics with a proton target, COMPASS kinematics with a proton, deuteron, and neutron target (the information on the neutron target can be effectively extracted from the 3He target), and JLab kinematics (both 6 GeV and 12 GeV) with a proton and neutron target are considered in our paper.

Keywords

Fragmentation Function SIDIS Process Single Spin Asymmetry Siver Effect Siver Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2009

Authors and Affiliations

  • Bo Sun
    • 1
  • Jun She
    • 1
  • Bing Zhang
    • 1
  • Ya-Jun Mao
    • 1
  • Bo-Qiang Ma
    • 1
    Email author
  1. 1.School of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking UniversityBeijingChina

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