A string theoretic model of gauge mediated supersymmetry beaking

Details A string theoretic model of gauge mediated supersymmetry beaking A string theoretic model of gauge mediated supersymmetry beaking

2008-07-25

arxiv.org/abs/0807.3953v3

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 3 tables; uses revtex; v3: some clarifications added

Scientific paper

We propose a robust supergravity model of dynamical supersymmetry breaking and gauge mediation, and a natural embedding in non-perturbative string theory with D-branes. A chiral field (and its mirror) charged under "anomalous" U(1)'s acts as a Polonyi field whose hierarchical Polonyi-term can be generated by string instantons. Further quartic superpotential terms arise naturally as a tree-level decoupling effect of massive string states. A robust supersymmetry breaking minimum allows for gauge mediation with soft masses at the TeV scale, which we realise for a globally consistent SU(5) GUT model of Type I string theory, with a D1-instanton inducing the Polonyi term.

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