Color magnetic corrections to quark model valence distributions

1993/04/20 by C. J. Benesh, T. Goldman, G. J. Stephenson Jr +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th

paper · pdf · doi:10.1103/physrevc.48.1379

published as Phys.Rev.C48:1379-1387,1993 · 25 Pages, LA-UR-93-1320

arxiv created 1993/04/20 · openalex publication_date 1993/09/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate order-\mathrm\ensuremathα_s color magnetic corrections to the valence quark distributions of the proton using the Los Alamos potential model wave functions. The spin-spin interaction breaks the model SU(4) symmetry, providing a natural mechanism for the difference between the up and down distributions. For a value of \mathrm\ensuremathα_s sufficient to produce the N-\ensuremathΔ mass splitting, we find up and down quark distributions in reasonable agreement with experiment.

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