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Large-N_c Baryons

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arxiv hep-ph/9803349 v1 pith:JBBSV7DP submitted 1998-03-13 hep-ph

classification hep-ph
keywords baryonslarge-nexpansionrelationsspin-flavorstaticsymmetryalgebra
verification ladder T0 review T1 audit T2 compute T3 formal
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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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  1. The Baryon-Baryon Interaction in the Large-$N_c$ Limit

    hep-ph 2024-12 conditional novelty 6.0 of 10

    A large-N_c analysis of the chiral baryon-baryon potential cuts the leading-order contact couplings from fifteen to three and fixes F/D=2/3 and C/D=2.

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