2009/11/11 by Bo Sun, Jun She, Bing Zhang +2
Physics and Astronomy · #Asymmetry #Fragmentation (computing) #High-Energy Particle Collisions Research #Kinematics #Neutron #Particle physics theoretical and experimental studies #Pion #Proton #Quantum Chromodynamics and Particle Interactions #Quark #Scattering #hep-ex #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-009-1191-z
published as Eur.Phys.J.C65:163-170,2010 · 7 latex pages, 11 figures, final version for publication, with references updated
openalex publication_date 2009/11/11 · arxiv created 2009/12/01 · arxiv updated 2014/11/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.