Surprises in nonperturbative dynamics in sigma-model at finite density

Details Surprises in nonperturbative dynamics in sigma-model at finite density Surprises in nonperturbative dynamics in sigma-model at finite density

2004-06-21

arxiv.org/abs/hep-ph/0406219v1

Mod.Phys.Lett. A19 (2004) 1341

Physics

High Energy Physics

High Energy Physics - Phenomenology

Brief review. 16 pages, 5 figures

Scientific paper

10.1142/S0217732304014008

The linear $SU(2)_L \times SU(2)_R$ sigma-model occupies a unique place in elementary particle physics and quantum field theory. It has been recently realized that when a chemical potential for hypercharge is added, it becomes a toy model for the description of the dynamics of the kaon condensate in high density QCD. We review recent results in nonperturbative dynamics obtained in the ungauged and gauged versions of this model.

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