Orbital Angular Momentum and Generalized Transverse Momentum Distribution
High Energy Physics - Phenomenology
2016-03-09 v1 High Energy Physics - Lattice
Nuclear Theory
Abstract
We show that, when boosted to the infinite momentum frame, the quark and gluon orbital angular momentum operators defined in the nucleon spin sum rule of X. S. Chen et al. are the same as those derived from generalized transverse momentum distributions. This completes the connection between the infinite momentum limit of each term in that sum rule and experimentally measurable observables. We also show that these orbital angular momentum operators can be defined locally, and discuss the strategies of calculating them in lattice QCD.
Keywords
Cite
@article{arxiv.1506.08832,
title = {Orbital Angular Momentum and Generalized Transverse Momentum Distribution},
author = {Yong Zhao and Keh-Fei Liu and Yibo Yang},
journal= {arXiv preprint arXiv:1506.08832},
year = {2016}
}
Comments
8 pages