Comments on the Meta-Stable Vacuum in N_f=N_c SQCD and Direct Mediation

Details Comments on the Meta-Stable Vacuum in N_f=N_c SQCD and Direct Mediation Comments on the Meta-Stable Vacuum in N_f=N_c SQCD and Direct Mediation

2007-05-08

arxiv.org/abs/0705.1074v1

JHEP 0707:020,2007

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, 1 figure

Scientific paper

10.1088/1126-6708/2007/07/020

We revisit N_f=N_c SQCD and its non-supersymmetric minima conjectured by Intriligator, Seiberg and Shih (ISS). We argue that the existence of such minima depends on the signs of three non-calculable parameters and that no evidence can be inferred by deforming the theory. We demonstrate this by studying a deformation of the theory which involves additional gauge singlets. In this case, the conjectured minimum is destabilized. We comment on the consequences of such singlets in models of direct mediation and in particular in the Pentagon model.

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