Evolution Equations for Higher Moments of Angular Momentum Distributions
High Energy Physics - Phenomenology
2014-11-17 v2
Abstract
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.
Cite
@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}
}
Comments
10 pages in LaTeX with 1 eps-figure; missing \Psi in eq.(10) added; p.7/8: short paragraph dropped, one definition added