Low Scale Direct Gauge Mediation with Perturbatively Stable Vacuum

Details Low Scale Direct Gauge Mediation with Perturbatively Stable Vacuum Low Scale Direct Gauge Mediation with Perturbatively Stable Vacuum

2009-12-15

arxiv.org/abs/0912.2802v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, 5 figures; v3: minor corrections

Scientific paper

In a class of direct gauge mediation with a perturbatively stable SUSY breaking vacuum, gaugino masses vanish at the leading order of SUSY breaking F-term. We study the allowed parameter space of the gauge mediation models. By imposing a Tevatron bound on the lightest chargino mass m_{{\tilde \chi}^\pm_1} > 270 GeV and a warm dark-matter mass bound on the light gravitino mass m_{3/2} < 16 eV, we find that almost all the parameter space is excluded. Near future experiments may completely exclude, or possibly discover, the scenario.

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