Retrofitted Gravity Mediation without the Gravitino-overproduction Problem

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dc.creatorEndo, Motoi
dc.creatorTakahashi, Fuminobu
dc.creatorYanagida, T. T.
dc.date2007-02-24
dc.date.accessioned2026-07-07T11:02:45Z
dc.date.available2026-07-07T11:02:45Z
dc.descriptionWe propose a retrofitted gravity mediation model which alleviates the gravitino overproduction from decays of an inflaton and a supersymmetry breaking field. In the model, we introduce an approximate U(1) symmetry under which the supersymmetry breaking field is charged, although it is broken by a mass term of messenger fields to generate gaugino masses of order the weak scale. In a low-scale inflation model, we find regions in which the gravitino overproduction problem is avoided.
dc.description24 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0702247
dc.identifierhttp://arxiv.org/abs/hep-ph/0702247
dc.identifierPhys.Rev.D76:083508,2007
dc.identifierdoi:10.1103/PhysRevD.76.083508
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188359
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleRetrofitted Gravity Mediation without the Gravitino-overproduction Problem
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