Hadron tomography through Wigner distributions
Abstract
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space and combine in a single picture all the information contained in the generalized parton distributions (GPDs) and the transverse-momentum dependent parton distributions (TMDs). In particular, we present results for the distribution of unpolarized quarks in a longitudinally polarized nucleon obtained in a light-cone constituent quark model. Treating the Wigner distribution as it was a classical distribution, we obtain the quark orbital angular momentum and compare it with alternative definitions given in terms of the GPDs and the TMDs.
Cite
@article{arxiv.1110.6102,
title = {Hadron tomography through Wigner distributions},
author = {Cedric Lorce and Barbara Pasquini},
journal= {arXiv preprint arXiv:1110.6102},
year = {2022}
}
Comments
6 pages, 1 figure, 1 table, Prepared for the Third International Workshop on Transverse Polarization Phenomena in Hard Scattering (Transversity2011), Veli Lo\v{s}inj, Croatia, 29 Aug - 2 Sep 2011