Large-N_c Baryons

Details Large-N_c Baryons Large-N_c Baryons

1998-03-13

arxiv.org/abs/hep-ph/9803349v1

Ann.Rev.Nucl.Part.Sci.48:81-119,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 34 pages, review article for Annu. Rev. Nucl. Part. Sci

Scientific paper

10.1146/annurev.nucl.48.1.81

A spin-flavor symmetry emerges for baryons in the large-N_c limit. Large-N_c baryons form irreducible representations of the spin-flavor algebra, and their static properties can be computed in a systematic expansion in 1/N_c. Symmetry relations for static baryon matrix elements are obtained at various orders in the 1/N_c expansion by neglecting subleading 1/N_c corrections. Equivalent relations arise in the quark and Skyrme models, which satisfy the same large-N_c group theory as QCD. The 1/N_c expansion yields useful results for QCD baryons with N_c=3.

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