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arXiv · 1102.2448

Pion and kaon valence-quark parton distribution functions

Trang Nguyen·Adnan Bashir·Craig D. Roberts·Peter C. Tandy
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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.

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Trang Nguyen, Adnan Bashir, Craig D. Roberts, Peter C. Tandy. 2011-02-11. Pion and kaon valence-quark parton distribution functions. https://doi.org/10.1103/physrevc.83.062201

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