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Dynamical breaking of U(1)R and supersymmetry in a metastable vacuum

By Steven Abel, Callum Durnford, Joerg Jaeckel and Valentin V. Khoze


We consider the metastable N = 1 QCD model of Intriligator, Seiberg and Shih (ISS), deformed by adding a baryon term to the superpotential. This simple deformation causes the spontaneous breaking of the approximate R-symmetry of the metastable vacuum. We then gauge the flavour SU(5)f and identify it with the parent gauge symmetry of the Standard Model (SM). This implements direct mediation of supersymmetry breaking without the need for an additional messenger sector. A reasonable choice of parameters leads to gaugino masses of the right order. Finally, we speculate that the entire “ISS × SM ” model should be interpreted as a magnetic dual of an (unknown) asymptotically free theory

Year: 2007
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