Unveiling the nucleon tensor charge at Jefferson Lab: A study of the SoLID case

作者：Ye Zhihong; Sato Nobuo; Allada Kalyan; Liu Tianbo; Chen Jian Ping; Gao Haiyan; Kang Zhong Bo; Prokudin Alexei; Sun Peng; Yuan Feng

来源：Physics Letters B, 2017, 767: 91-98.

DOI：10.1016/j.physletb.2017.01.046

• Semi-inclusive deep inelastic scattering
• Tensor charge
• Transversity
• Jefferson Lab 12 GeV upgrade
• SoLID
• JLAB-THY-16-2328

Future experiments at the Jefferson Lab 12 GeV upgrade, in particular, the Solenoidal Large Intensity Device (SoLID), aim at a very precise data set in the region where the partonic structure of the nucleon is dominated by the valence quarks. One of the main goals is to constrain the quark transversity distributions. We apply recent theoretical advances of the global QCD extraction of the transversity distributions to study the impact of future experimental data from the SoLID experiments. Especially, we develop a simple strategy based on the Hessian matrix analysis that allows one to estimate the uncertainties of the transversity quark distributions and their tensor charges extracted from SoLID data simulation. We find that the SoLID measurements with the proton and the effective neutron targets can improve the precision of the u- and d-quark transversity distributions up to one order of magnitude in the range 0.05 < x < 0.6.

• 出版日期2017-4-10
• 单位MIT; Los Alamos