Light baryon masses in different large-Nc limits

被引：15

作者：

Buisseret, Fabien ^{[1
]}

Semay, Claude ^{[1
]}

机构：

[1] Univ Mons, Serv Phys Nucl & Subnucl, Acad Univ Wallonie Bruxelles, B-7000 Mons, Belgium

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 05期

关键词：

ENERGY;

D O I：

10.1103/PhysRevD.82.056008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the behavior of light baryon masses in three inequivalent large-N-c limits: 't Hooft, QCDAS 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, QCDAS and Corrigan-Ramond limits, respectively. Those results confirm previous ones obtained by using either diagrammatic methods or constituent approaches, mostly valid for heavy quarks.

引用

页数：7

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