Color Magnetic Corrections to Quark Model Valence Distributions

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We calculate order $α_s$ 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 $α_s$ sufficient to produce the $N-Δ$ mass splitting, we find up and down quark distributions in reasonable agreement with experiment.
25 Pages, LA-UR-93-1320

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/192268

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/9304016
 http://arxiv.org/abs/nucl-th/9304016
 Phys.Rev.C48:1379-1387,1993
 doi:10.1103/PhysRevC.48.1379

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arXiv