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

页码：451 / 455

页数：5

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