QUARK ORBITAL ANGULAR MOMENTUM

被引：1
|
作者：
Burkardt, Matthias [1 ]
机构：
[1] New Mexico State Univ, Las Cruces, NM 88003 USA
来源：
LIGHT CONE CRACOW 2012: MODERN APPROACHES TO NONPERTURBATIVE GAUGE THEORIES AND THEIR APPLICATIONS | 2013年 / 6卷 / 01期
关键词：
DEEP-INELASTIC SCATTERING; SPIN ASYMMETRIES; NUCLEON;
D O I：
10.5506/APhysPolBSupp.6.125
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
For transversely polarized nucleons the distribution of quarks in the transverse plane is transversely shifted and that shift can be described in terms of Generalized Parton Distributions (GPDs). This observation provides a 'partonic' derivation of the Ji-relation for the quark angular momentum in terms of GPDs. Wigner distributions are used to show that the difference between the Jaffe-Manohar definition of quark orbital angular momentum and that of Ji is equal to the change of orbital angular momentum due to the final state interactions as the struck quark leaves the target in a DIS experiment.
引用
收藏
页码：125 / +
页数：2
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