Pion and kaon valence-quark parton distribution functions
Nuclear Theory
2011-07-04 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
A rainbow-ladder truncation of QCD's Dyson-Schwinger equations, constrained by existing applications to hadron physics, is employed to compute the valence-quark parton distribution functions of the pion and kaon. Comparison is made to pi-N Drell-Yan data for the pion's u-quark distribution and to Drell-Yan data for the ratio u_K(x)/u_\pi(x): the environmental influence of this quantity is a parameter-free prediction, which agrees well with existing data. Our analysis unifies the computation of distribution functions with that of numerous other properties of pseudoscalar mesons.
Cite
@article{arxiv.1102.2448,
title = {Pion and kaon valence-quark parton distribution functions},
author = {Trang Nguyen and Adnan Bashir and Craig D. Roberts and Peter C. Tandy},
journal= {arXiv preprint arXiv:1102.2448},
year = {2011}
}
Comments
5 pages, submitted for publication