Gravity in Gauge Mediation

Details Gravity in Gauge Mediation Gravity in Gauge Mediation

2008-08-04

arxiv.org/abs/0808.0470v2

JHEP 0810:016,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

(v1) 37 pages; (v2) 38 pages, typos corrected, references added, revised discussion of SU(5) breaking

Scientific paper

10.1088/1126-6708/2008/10/016

We investigate O'Raifeartaigh-type models for F-term supersymmetry breaking in gauge mediation scenarios in the presence of gravity. It is pointed out that the vacuum structure of those models is such that in metastable vacua gravity mediation contribution to scalar masses is always suppressed to the level below 1 percent, almost sufficient for avoiding FCNC problem. Close to that limit, gravitino mass can be in the range 10-100 GeV, opening several interesting possibilities for gauge mediation models, including Giudice-Masiero mechanism for mu and Bmu generation. Gravity sector can include stabilized moduli.

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