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arXiv · hep-th/9606191

More on softly broken N=2 QCD

L. Alvarez-Gaume·M. Marino
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Abstract

We extend previous work on the soft breaking of $N=2$ supersymmetric QCD. We present the formalism for the breaking due to a dilaton spurion for a general gauge group and obtain the exact effective potential. We obtain some general features of the vacuum structure in the pure $SU(N)$ Yang-Mills theory and we also derive a general mass formula for this class of theories, in particular we present explicit results for the mass spectrum in the $SU(2)$ case. Finally we analyze the vacuum structure of the $SU(2)$ theory with one massless hypermultiplet. This theory presents dyon condensation and a first order phase transition in the supersymmetry breaking parameter driven by non-mutually local BPS states. This could be a hint of Argyres-Douglas-like phases in non-supersymmetric gauge theories.

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L. Alvarez-Gaume, M. Marino. 1996-06-28. More on softly broken N=2 QCD. https://doi.org/10.1142/s0217751x97000724

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