Operator Analysis of L=1 Baryon Masses in Large N_c QCD

Details Operator Analysis of L=1 Baryon Masses in Large N_c QCD Operator Analysis of L=1 Baryon Masses in Large N_c QCD

1998-12-18

arxiv.org/abs/hep-ph/9812440v1

Phys.Rev. D59 (1999) 114008

Physics

High Energy Physics

High Energy Physics - Phenomenology

36 pages LaTeX

Scientific paper

10.1103/PhysRevD.59.114008

We consider in detail the mass operator analysis for the nonstrange L=1 excited baryons in large N_c QCD. We present a straightforward procedure for constructing the large N_c baryon wavefunctions, and provide complete analytic expressions for the matrix elements of all the independent isosinglet mass operators. We discuss the relationship between the old-fashioned operator analyses based on nonrelativistic SU(6) symmetry and the modern large N_c approach, which has a firmer theoretical foundation. We then suggest a possible dynamical interpretation for the subset of operators preferred strongly by the data.

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