Abstract
We provide a method for obtaining simple models of supersymmetry breaking, with all small mass scales generated dynamically, and illustrate it with explicit examples. We start from models of perturbative supersymmetry breaking, such as O'Raifeartaigh and Fayet models, that would respect an $R$ symmetry if their small input parameters transformed as the superpotential does. By coupling the system to a pure supersymmetric Yang-Mills theory (or a more general supersymmetric gauge theory with dynamically small vacuum expectation values), these parameters are replaced by powers of its dynamical scale in a way that is naturally enforced by the symmetry. We show that supersymmetry breaking in these models may be straightforwardly mediated to the supersymmetric standard model, obtain complete models of direct gauge mediation, and comment on related model building strategies that arise in this simple framework.
Highlights
AND GENERAL IDEADynamical supersymmetry (SUSY) breaking [1] and the mediation of SUSY breaking to the supersymmetric standard model (SSM) have been studied extensively
We provide a method for obtaining simple models of supersymmetry breaking, with all small mass scales generated dynamically, and illustrate it with explicit examples
We show that supersymmetry breaking in these models may be straightforwardly mediated to the supersymmetric standard model, obtain complete models of direct gauge mediation, and comment on related model building strategies that arise in this simple framework
Summary
Dynamical supersymmetry (SUSY) breaking [1] and the mediation of SUSY breaking to the supersymmetric standard model (SSM) have been studied extensively. In field theory models of dynamical SUSY breaking, the requirement that SUSY be broken in the global minimum is very restrictive, and allowing for metastable vacua greatly simplifies the problems of model building, especially for gauge mediation. This point was emphasized clearly, for example, in [7,8,11,12]; more recently it has found application in the problem of moduli stabilization [18] and dynamics [21,22,23], in the vacuum structure of. We summarize and discuss further model building applications
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