Light baryon masses in different large-$N_c$ limits - INSPIRE

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Light baryon masses in different large- $N_c$ limits

Fabien Buisseret
(
- U. Mons
)
,
Claude Semay
(
- U. Mons
)

Jun, 2010

15 pages

Published in:

Phys.Rev.D 82 (2010) 056008

e-Print:

1006.4729 [hep-ph]

DOI:

10.1103/PhysRevD.82.056008

View in:

ADS Abstract Service

reference search14 citations

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Abstract: (arXiv)

We investigate the behavior of light baryon masses in three inequivalent large-

N_c

limits: 't~Hooft, QCD

_{{\rm 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, QCD

_{{\rm 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.

Note:

Final version to appear in Phys. Rev. D

11.15.Pg
14.20.-c
12.39.Pn
12.39.Ki
baryon: mass
quark model: constituent
energy: kinetic
quark: massless
quantum chromodynamics
expansion 1/N: color

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Figures(0)

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