Spontaneous R-symmetry breaking in O'Raifeartaigh models
Mar, 2007Citations per year
Abstract: (arXiv)
We study the question of whether spontaneous U(1)_R breaking can occur in O'Raifeartaigh-type models of spontaneous supersymmetry breaking. We show that in order for it to occur, there must be a field in the theory with R-charge different from 0 or 2. We construct the simplest O'Raifeartaigh model with this property, and we find that for a wide range of parameters, it has a meta-stable vacuum where U(1)_R is spontaneously broken. This suggests that spontaneous U(1)_R breaking actually occurs in generic O'Raifeartaigh models.- Global Symmetries
- Supersymmetry Breaking
- supersymmetry: symmetry breaking
- symmetry: U(1)
- spontaneous symmetry breaking
- R parity: violation
- symmetry breaking: SU(5)
- O'Raifeartaigh model
- vacuum state: stability
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