Nucleon quark distributions in a covariant quark-diquark model
High Energy Physics - Phenomenology
2010-02-17 v1
Abstract
Spin-dependent and spin-independent quark light-cone momentum distributions and structure functions are calculated for the nucleon. We utilize a modified Nambu-Jona-Lasinio model in which confinement is simulated by eliminating unphysical thresholds for nucleon decay into quarks. The nucleon bound state is obtained by solving the Faddeev equation in the quark-diquark approximation, where both scalar and axial-vector diquark channels are included. We find excellent agreement between our model results and empirical data.
Cite
@article{arxiv.hep-ph/0504229,
title = {Nucleon quark distributions in a covariant quark-diquark model},
author = {I. C. Cloet and W. Bentz and A. W. Thomas},
journal= {arXiv preprint arXiv:hep-ph/0504229},
year = {2010}
}
Comments
6 pages, 7 figures