Pion and kaon valence-quark parton distribution functions.

Journal Article · Thu Jun 16 00:00:00 EDT 2011 · Phys. Rev. C

DOI:https://doi.org/10.1103/PhysRevC.83.062201· OSTI ID:1020679

Nguyen, T; Bashir, A; Roberts, C D; Tandy, P C ^[1]

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1. Physics

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{sub K}(x)/u{sub {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.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1020679
• Report Number(s): ANL/PHY/JA-69350; TRN: US1103763
• Journal Information: Phys. Rev. C, Vol. 83, Issue 6 ; Jun. 16, 2011
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DISTRIBUTION
DISTRIBUTION FUNCTIONS
FORECASTING
HADRONS
KAONS
PHYSICS
PIONS
PSEUDOSCALAR MESONS