Charge Symmetry Breaking in the Valence Quark Distributions of the Nucleon

Abstract

Using a quark model, we study the effect of charge symmetry breaking on the valence quark distributions of the nucleon. The effect due to quark mass differences and the Coulomb interaction of the electrically charged quarks is calculated and, in contrast to recent claims, found to be small. In addition, we investigate the effect of charge symmetry breaking in the confining interaction, and in the perturbative evolution equations used to relate the quark model distributions to experiment. We find that both these effects are small, and that the strong charge symmetry breaking effect included in the scalar confining interactions may be distinguishable from that generated by quark mass differences.

10 pages, LaTEX, 5 Postscript figures

References in corpus (8)

• QED Radiative Corrections for Parton Distributions
• DRELL-YAN PROCESSES AS A PROBE OF CHARGE SYMMETRY VIOLATION IN THE PION AND NUCLEON
• Nucleon Structure Functions from Relativistic Constituent Quarks
• Confinement, Crossing Symmetry, and Glueballs
• Color Magnetic Corrections to Quark Model Valence Distributions
• Numerical Solution of Altarelli-Parisi Equations
• The Center-of-Mass of A Few-Body Quantum System In An Effective Central Field
• QCD Evolution by Finite Element Methods

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• Charge Symmetry at the Partonic Level
• Evidence for Substantial Charge Symmetry Violation in Parton Distributions
• Strange Magnetic Moment and Isospin Symmetry Breaking
• Valence Quark Distribution in A=3 Nuclei
• Charge symmetry violation in the parton distributions of the nucleon
• Evidence for Charge Symmetry Violation in Parton Distributions
• Shadowing in neutrino deep inelastic scattering and the determination of the strange quark distribution
• Flavor and Charge Symmetry in the Parton Distributions of the Nucleon
• Flavor structure of the unpolarized and longitudinally-polarized sea-quark distributions in the nucleon
• Flavor Asymmetry of the Nucleon Sea and W Boson Production
• Testing Parton Charge Symmetry at HERA
• Effect due to charge symmetry violation on the Paschos-Wolfenstein relation
• A Mesonic Analog of the Deuteron