Baryons and Skyrmions in QCD with quarks in higher representations

被引：24

作者：

Bolognesi, Stefano ^{[1
]}

机构：

[1] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.75.065030

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the baryonic sector of QCD with quarks in the two-index symmetric or antisymmetric representation. The minimal gauge invariant state that carries baryon number cannot be identified with the Skyrmion of the low-energy chiral effective Lagrangian. Mass, statistics, and baryon number do not match. We carefully investigate the properties of the minimal baryon in the large N limit and we find that it is unstable under formation of bound states with higher baryonic number. These states match exactly with the properties of the Skyrmion of the effective Lagrangian.

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页数：10

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