Simplified R-symmetry breaking and low-scale gauge mediation

Jason L. Evans, Masahiro Ibe, Matthew Sudano, Tsutomu T. Yanagida

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We argue that some of the difficulties in constructing realistic models of lowscale gauge mediation are artifacts of the narrow set of models that have been studied. In particular, much attention has been payed to the scenario in which the Goldstino superfield in an O'Raifeartaigh model is responsible for both supersymmetry breaking and R-symmetry breaking. In such models, the competing problems of generating sufficiently massive gauginos while preserving an acceptably light gravitino can be quite challenging. We show that by sharing the burdens of breaking supersymmetry and R-symmetry with a second field, these problems are easily solved even within the O'Raifeartaigh framework. We present explicit models realizing minimal gauge mediation with a gravitino mass in the eV range that are both calculable and falsifiable.

Original languageEnglish (US)
Article number004
JournalJournal of High Energy Physics
Issue number3
StatePublished - Apr 13 2012


  • Beyond Standard Model
  • Supersymmetry Breaking


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