Baryons and Skyrmions in QCD with Quarks in Higher Representations

Details Baryons and Skyrmions in QCD with Quarks in Higher Representations Baryons and Skyrmions in QCD with Quarks in Higher Representations

2006-05-05

arxiv.org/abs/hep-th/0605065v4

Phys.Rev.D75:065030,2007

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 13 figures. v2: minor changes. v3: corrected a mistake and some typos. v4: modifyed the part about the stability of

Scientific paper

10.1103/PhysRevD.75.065030

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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