Evolution equations for higher moments of angular momentum distributions

被引：48

作者：

Hagler, P ^{[1
]}

Schafer, A ^{[1
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

来源：

PHYSICS LETTERS B | 1998年 / 430卷 / 1-2期

关键词：

perturbative QCD; orbital angular momentum; evolution equation; nucleon spin;

D O I：

10.1016/S0370-2693(98)00414-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Based on a sumrule for the nucleon spin we expand quark and gluon orbital angular momentum operators and derive an evolution matrix for higher moments of the corresponding distributions. In combination with the spin-dependent DGLAP-matrix we find a complete set of spin and orbital angular momentum evolution equations. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：179 / 185

页数：7

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