Parton orbital angular momentum and final state interactions

被引：63

作者：

Burkardt, Matthias ^{[1
]}

机构：

[1] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 01期

关键词：

SINGLE-SPIN; DRELL-YAN; SCATTERING; ASYMMETRIES; PROTON; G1;

D O I：

10.1103/PhysRevD.88.014014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Definitions of orbital angular momentum based on Wigner distributions are used as a framework to discuss the connection between the Ji definition of the quark orbital angular momentum and that of Jaffe and Manohar. We find that the difference between these two definitions can be interpreted as the change in the quark orbital angular momentum as it leaves the target in a DIS experiment. The mechanism responsible for that change is similar to the mechanism that causes transverse single-spin asymmetries in semi-inclusive deep-inelastic scattering.

引用

页数：7

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