R-symmetry, supersymmetry breaking and metastable vacua in global and local supersymmetric theories

Hiroyuki Abe, Tatsuo Kobayashi, Yuji Omura

Research output: Contribution to journalArticle

22 Citations (Scopus)

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 languageEnglish
Article number044
JournalJournal of High Energy Physics
Volume2007
Issue number11
DOIs
Publication statusPublished - 2007 Nov 1

Keywords

  • Supergravity Models
  • Supersymmetric effective theories
  • Supersymmetry breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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