## Abstract

We study N = 1 global and local supersymmetric theories with a continuous global U(1) _{R} symmetry as models of dynamical supersymmetry (SUSY) breaking. We introduce explicit R-symmetry breaking terms into such models, in particular a generalized O'Raifeartaigh model. Such explicit R-symmetry breaking terms can lead to a SUSY preserving minimum. We classify explicit R-symmetry breaking terms by the structure of newly appeared SUSY stationary points as a consequence of the R-breaking effect, which could make the SUSY breaking vacuum metastable. We show that the R-breaking terms are basically divided into two categories. One of them does not generate a SUSY solution, or yields SUSY solutions that disappear in the case of supergravity when we tune a parameter so that the original SUSY breaking minimum becomes a Minkowski vacuum. We also show that the general argument by Nelson and Seiberg for a dynamical SUSY breaking still holds with a local SUSY except for a certain nontrivial case, and present concrete examples of the exception.

Original language | English |
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Article number | 044 |

Journal | Journal of High Energy Physics |

Volume | 2007 |

Issue number | 11 |

DOIs | |

Publication status | Published - 2007 Nov 1 |

Externally published | Yes |

## Keywords

- Supergravity Models
- Supersymmetric effective theories
- Supersymmetry breaking

## ASJC Scopus subject areas

- Nuclear and High Energy Physics