Supersymmetry Breaking, R-Symmetry Breaking and Metastable Vacua
arXiv:hep-th/0703281 · doi:10.1088/1126-6708/2007/07/017
Abstract
Models of spontaneous supersymmetry breaking generically have an R-symmetry, which is problematic for obtaining gaugino masses and avoiding light R-axions. The situation is improved in models of metastable supersymmetry breaking, which generically have only an approximate R-symmetry. Based on this we argue, with mild assumptions, that metastable supersymmetry breaking is inevitable. We also illustrate various general issues regarding spontaneous and explicit R-symmetry breaking, using simple toy models of supersymmetry breaking.
23 pages