Pion and kaon valence-quark parton distribution functions

Details Pion and kaon valence-quark parton distribution functions Pion and kaon valence-quark parton distribution functions

2011-02-11

arxiv.org/abs/1102.2448v1

Phys.Rev.C83:062201,2011

Physics

Nuclear Physics

Nuclear Theory

5 pages, submitted for publication

Scientific paper

10.1103/PhysRevC.83.062201

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.

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