Holomorphy, triality and non-perturbative beta function in 2d supersymmetric QCD

Abstract

In this paper, we study the RG flow in the non-linear sigma models obtained from a 2d N=(0,2) supersymmetric QCD. The sigma model is parameterized by a single Kahler modulus. We determine its exact non-perturbative beta function using holomorphy, triality and the knowledge of the infra-red fixed point.

5 pages, 3 figures

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