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ORaifeartaigh models with spontaneous R-symmetry breaking

Luca Ferretti (SISSA/ISAS)
03 July 2007, 14:30 - 16:15

ORaifeartaigh models with general R-charge assignments can have vacua where both supersymmetry and R-symmetry are spontaneously broken. Most of these vacua are metastable because the potential shows a runaway behaviour. We explain the relation between runaway directions and R-symmetry, and we discuss the origin of metastability in these models. Besides, we show models with global symmetries that can play the role of hidden metastable SUSY-breaking sector in theories with gauge mediation or direct mediation.
ferretti.pdf [297 KBytes]