Year: 2010
Type: article
Abstract: We investigate the behavior of light baryon masses in three inequivalent large-${N}_{c}$ limits: 't Hooft, ${\mathrm{QCD}}_{\mathrm{AS}}$ 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 ${N}_{c}$, ${N}_{c}^{2}$, and 1 in the 't Hooft, ${\mathrm{QCD}}_{\mathrm{AS}}$ and Corrigan-Ramond limits, respectively. Those results confirm previous ones obtained by using either diagrammatic methods or constituent approaches, mostly valid for heavy quarks.
Authors: Fabien Buisseret, Claude Semay
Institution: University of Mons
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2005300833