Natural semi-direct gauge mediation and D-branes at singularities

Details Natural semi-direct gauge mediation and D-branes at singularities Natural semi-direct gauge mediation and D-branes at singularities

2009-06-03

arxiv.org/abs/0906.0727v2

Phys.Rev.D80:045001,2009; Erratum-ibid.D81:029901,2010

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 5 figures. V2: Typos corrected and a note about putative unsuppressed gaugino mass added

Scientific paper

10.1103/PhysRevD.80.045001

We consider semi-direct gauge mediation models of supersymmetry breaking where the messengers are composite fields and their supersymmetric mass is naturally generated through quartic superpotential couplings. We show that such composite messenger models can be easily embedded in quiver gauge theories arising from D-branes at Calabi-Yau singularities, and argue that semi-direct gauge mediation is in fact a very natural option for supersymmetry breaking in D-brane models. We provide several explicit examples and discuss their salient phenomenological properties.

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