Color Magnetic Corrections to Quark Model Valence Distributions
Abstract
We calculate order αs color magnetic corrections to the valence quark distributions of the proton using the Los Alamos Model Potential wavefunctions. 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 αs sufficient to produce the N- mass splitting, we find up and down quark distributions in reasonable agreement with experiment.
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