Light baryon masses in different large-N{sub c} limits

Journal Article · Wed Sep 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.056008· OSTI ID:21421087

Buisseret, Fabien; Semay, Claude ^[1]

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1. Service de Physique Nucleaire et Subnucleaire, Universite de Mons-UMONS, Academie universitaire Wallonie-Bruxelles, Place du Parc 20, B-7000 Mons (Belgium)

We investigate the behavior of light baryon masses in three inequivalent large-N{sub c} limits: 't Hooft, QCD{sub AS} and Corrigan-Ramond. Our framework is a constituent quark model with relativistic-type kinetic energy, stringlike confinement, and one-gluon-exchange term, thus leading to well-defined results even for massless quarks. We analytically prove that the light baryon masses scale as N{sub c}, N{sub c}{sup 2}, and 1 in the 't Hooft, QCD{sub AS} and Corrigan-Ramond limits, respectively. Those results confirm previous ones obtained by using either diagrammatic methods or constituent approaches, mostly valid for heavy quarks.

• OSTI ID: 21421087
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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