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, Vol. 83, Issue 6; Other Information: DOI: 10.1103/PhysRevC.83.062201; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

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