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Local Models in FTheory and MTheory with Three Generations,” arXiv:0901.3785 [hepth
"... Abstract: We describe a general framework that can be used to geometrically engineer local, phenomenological models in Ftheory and Mtheory based on ALEfibrations, and we present several concrete examples of such models that feature three generations of matter with semirealistic phenomenology. We ..."
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Abstract: We describe a general framework that can be used to geometrically engineer local, phenomenological models in Ftheory and Mtheory based on ALEfibrations, and we present several concrete examples of such models that feature three generations of matter with semirealistic phenomenology. We show that the geometric structures required for generating interactions—tripleintersections of mattercurves in Ftheory and supersymmetric threecycles supporting multiple conical singularities in Mtheory—are generic in such ALEfibred manifolds, and that they can be understood in correspondence with one another. The models we can construct in this way are strictly limited in complexity by the maximality of the Ê8ALE space, but turn out to be just complex enough to accommodate some of the most realistic
LAURV~'75/0' Title: Supersymmetry breaking and gauge mediation in models with a generic superpotential Supersymmetry breaking and gauge mediation in models with a generic superpotential
"... We present a general scheme for finding or creating a metastable vacuum in supersym metric theories. By using the formalism, we show that there is a parameter region where a metastable vacuum exists in the vVessZumino model coupled to messenger fields. This model serves as a perturbative renormali ..."
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We present a general scheme for finding or creating a metastable vacuum in supersym metric theories. By using the formalism, we show that there is a parameter region where a metastable vacuum exists in the vVessZumino model coupled to messenger fields. This model serves as a perturbative renormalizable model of direct gauge mediation.