Wigner distributions and quark orbital angular momentum
High Energy Physics - Phenomenology
2015-06-11 v1 Nuclear Theory
Abstract
We discuss the quark phase-space or Wigner distributions of the nucleon which combine in a single picture all the information contained in the generalized parton distributions and the transverse-momentum dependent parton distributions. In particular, we present results for the distribution of unpolarized quarks in a longitudinally polarized nucleon obtained in a light-front constituent quark model. We show how the quark orbital angular momentum can be extracted from the Wigner distributions and compare it with alternative definitions.
Cite
@article{arxiv.1208.3065,
title = {Wigner distributions and quark orbital angular momentum},
author = {Cedric Lorce and Barbara Pasquini},
journal= {arXiv preprint arXiv:1208.3065},
year = {2015}
}
Comments
8 pages, 2 figures, 1 table, contribution to the proceedings of the QCD Evolution workshop 2012, May 14-17, JLab