Pion and kaon valence-quark parton distribution functions

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.062201· OSTI ID:21502755

Nguyen, Trang ^[1]; Bashir, Adnan ^[2]; Roberts, Craig D ^[3]; Tandy, Peter C ^[3]

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1. Center for Nuclear Research, Department of Physics, Kent State University, Kent, Ohio 44242 (United States)
2. Instituto de Fisica y Matematicas, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan 58040 (Mexico)
3. Kavli Institute for Theoretical Physics China, CAS, Beijing 100190 (China)

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.

• OSTI ID: 21502755
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 83; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COMPARATIVE EVALUATIONS
DISTRIBUTION
DISTRIBUTION FUNCTIONS
DRELL MODEL
ELEMENTARY PARTICLES
EQUATIONS
EVALUATION
FERMIONS
FIELD THEORIES
FORECASTING
FUNCTIONS
HADRONS
KAONS
MESONS
PIONS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SIMULATION
STRANGE MESONS
STRANGE PARTICLES
U QUARKS