R-symmetry breaking, runaway directions and global symmetries in O’Raifeartaigh models
نویسنده
چکیده
We discuss O’Raifeartaigh models with general R-charge assignments, introduced by Shih to break R-symmetry spontaneously. We argue that most of these models have runaway directions related to the R-symmetry. In addition, we study the simplest model with a U(N) global symmetry and show that in a range of parameters Rsymmetry is spontaneously broken in a metastable vacuum.
منابع مشابه
O’Raifeartaigh models with spontaneous R-symmetry breaking
O’Raifeartaigh 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. PACS. 11.30.Qc -12.60.Jv
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