Evolution Equations for Higher Moments of Angular Momentum Distributions
高能物理 - 唯象学
2014-11-17 v2
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.
关键词
引用
@article{arxiv.hep-ph/9802362,
title = {Evolution Equations for Higher Moments of Angular Momentum Distributions},
author = {P. Haegler and A. Schaefer},
journal= {arXiv preprint arXiv:hep-ph/9802362},
year = {2014}
}
备注
10 pages in LaTeX with 1 eps-figure; missing \Psi in eq.(10) added; p.7/8: short paragraph dropped, one definition added