Non-abelian Topological Strings and Metastable States in Linear Sigma Model

Details Non-abelian Topological Strings and Metastable States in Linear Sigma Model Non-abelian Topological Strings and Metastable States in Linear Sigma Model

2002-04-22

arxiv.org/abs/hep-ph/0204262v1

Phys.Rev. D66 (2002) 034018

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 figures

Scientific paper

10.1103/PhysRevD.66.034018

Non-abelian (NA) topological string defects exist in QCD with the spontaneous chiral symmetry breaking $U(N_f)_L \times U(N_f)_R \to U(N_f)_V$. Anomaly effects lead to domain walls connected to these strings. In the framework of linear sigma model we find the configuration of these defects. Also we show that in this model metastable CP violating vacuua exist. Strings as well as extended regions of metastable vacuua may form during the chiral transition which could have interesting effects.

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