Direct Mediation of Meta-Stable Supersymmetry Breaking
نویسندگان
چکیده
The supersymmetric SU(NC) Yang-Mills theory coupled to NF matter fields in the fundamental representation has meta-stable vacua with broken supersymmetry when NC < NF < 3 2 NC . By gauging the flavor symmetry, this model can be coupled directly to the standard model. We show that it is possible to make a slight deformation to the model so that gaugino masses are generated and the Landau pole problem can be avoided. The deformed model has simple realizations on intersecting branes in string theory, where various features of the meta-stable vacua are encoded geometrically as brane configurations. December 2006
منابع مشابه
Gauge Mediation in String Theory
We show that a large class of phenomenologically viable models for gauge mediation of supersymmetry breaking based on meta-stable vacua can be realized in local Calabi-Yau compactifications of string theory.
متن کاملSupersymmetry Breaking and Gauge Mediation
We review recent works on supersymmetry breaking and gauge mediation. We survey our current understanding of dynamical supersymmetry breaking mechanisms and describe new model building tools using duality, meta-stability, and stringy construction. We discuss phenomenological constraints and their solutions, paying attentions to issues with gaugino masses and electroweak symmetry breaking.
متن کاملDynamical GUT breaking and μ-term driven supersymmetry breaking
Models for dynamical breaking of supersymmetric grand unified theories are presented. The doublet-triplet splitting problem is absent since the Higgs doublet superfields can be identified with the massless mesons of the strong gauge group whereas there are no massless states corresponding to the colored Higgs fields. Various strong gauge groups SU(Nc), Sp(Nc) and SO(Nc) are examined. In a model...
متن کاملAn Extension for Direct Gauge Mediation of Metastable Supersymmetry Breaking
We study the direct mediation of metastable supersymmetry breaking by a Φ (Φ is the meson field) deformation to the ISS model and extend it by splitting Φ into two parts and gauging the flavor symmetry. We find that with such an extension the enough longlived metastable vacua can be obtained and the proper gaugino masses can be generated. Further, this allows for constructing a kind of models w...
متن کاملStrongly Coupled Semi-Direct Mediation of Supersymmetry Breaking
Strongly coupled semi-direct gauge mediation models of supersymmetry breaking through massive mediators with standard model charges are investigated by means of composite degrees of freedom. Sizable mediation is realized to generate the standard model gaugino masses for a small mediator mass without breaking the standard model symmetries. SLAC-PUB-1459 Work supported in part by US Department of...
متن کامل