T-odd quark-gluon-quark correlation function in the diquark model

被引：20
|
作者：
Lu, Zhun [1 ]
Schmidt, Ivan [2 ,3 ]
机构：
[1] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China
[2] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
[3] Ctr Cient Tecnol Valparaiso, Valparaiso, Chile
来源：
PHYSICS LETTERS B | 2012年 / 712卷 / 4-5期
关键词：
Transverse momentum distributions; Twist-3; Spectator diquark model; Time-reversal-odd; FINAL-STATE INTERACTIONS; SINGLE-SPIN ASYMMETRIES; DRELL-YAN; HARD-SCATTERING; SIVERS FUNCTION; ANALYZING POWER; GAUGE;
D O I：
10.1016/j.physletb.2012.05.023
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the transverse momentum dependent quark-gluon-quark correlation function. Using a spectator diquark model, we calculate the eight time-reversal-odd interaction-dependent twist-3 quark distributions appearing in the decomposition of the transverse momentum dependent quark-gluon-quark correlator. In order to obtain finite results, we assume a dipole form factor for the nucleon-quark-diquark coupling, instead of a point-like coupling. The results are compared with the time-reversal-odd interaction-independent twist-3 TMDs calculated in the same model. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：451 / 455
页数：5
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