Twist-3 gluon contribution to Sivers asymmetry in J/ψ production in semi-inclusive deep inelastic scattering

被引：3

作者：

Chen, Longjie ^{[1
]}

Xing, Hongxi

Yoshida, Shinsuke

机构：

[1] South China Normal Univ, Inst Quantum Matter, Key Lab Atom & Subatom Struct & Quantum Control MO, Guangzhou 510006, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 108卷 / 05期

基金：

中国国家自然科学基金;

关键词：

SINGLE-SPIN; POLARIZATION; QCD;

D O I：

10.1103/PhysRevD.108.054021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We carry out the first calculation for the twist-3 gluon contribution to the single transverse-spin asymmetry (SSA) in J/psi production in semi-inclusive deep inelastic scattering. Our result shows that the J/psi SSA is an ideal observable to pin down the C-even type twist-3 gluon distribution that has a direct relationship with the gluon transverse-momentum-dependent distribution function. We also perform some numerical simulations of the J/psi SSA for the kinematics accessible at the future electron-ion-collider experiment. For color-singlet contribution, the hadronization effect of J/psi is completely canceled at the level of the SSA, and the spin-dependent structure functions directly reflect the behavior of the C-even twist-3 gluon distribution.

引用

页数：19

共 25 条

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