Discrete symmetry in supersymmetric N=2 gauge theory

Details Discrete symmetry in supersymmetric N=2 gauge theory Discrete symmetry in supersymmetric N=2 gauge theory

2011-09-22

arxiv.org/abs/1109.4679v1

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 1 figure

Scientific paper

A new discrete symmetry group, which governs low-energy properties of the supersymmetric N=2 gauge theory is found. Each element of this group S_r, r being the rank of the gauge group, represents a permutation of r electric charges available in the theory accompanied by a simultaneous permutation of r monopoles, provided the sets of charges and monopoles are chosen properly. Properties of the theory are strongly influenced by S_r; if the central charges (and masses) of r monopoles are degenerate, then the central charges (and masses) of r electric charges are also necessarily degenerate, and vice versa. This condition uniquely defines the vital value of the VEV of the scalar field, at which all monopoles are massless. The general theoretical discussion is illustrated by a model, which generalizes the Seiberg-Witten treatment of the supersymmetric N=2 gauge theory for an arbitrary gauge group.

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