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arXiv · 1512.00029

Sequestered gravity in gauge mediation

Ignatios Antoniadis·Karim Benakli·Mariano Quiros
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Abstract

We present a novel mechanism of supersymmetry breaking embeddable in string theory and simultaneously sharing the main advantages of (sequestered) gravity and gauge mediation. It is driven by a Scherk-Schwarz deformation along a compact extra dimension, transverse to a D-brane stack supporting the supersymmetric extension of the Standard Model. This fixes the magnitude of the gravitino mass, together with that of the gauginos of a bulk gauge group, at a scale as high as $10^{10}$ GeV. Supersymmetry breaking is mediated to the observable sector dominantly by gauge interactions using massive messengers transforming non-trivially under the bulk and Standard Model gauge groups and leading to a neutralino LSP as dark matter candidate. The Higgsino mass $μ$ and soft Higgs-bilinear B$μ$-term could be generated at the same order of magnitude as the other soft terms by effective supergravity couplings as in the Giudice-Masiero mechanism.

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Ignatios Antoniadis, Karim Benakli, Mariano Quiros. 2015-11-30. Sequestered gravity in gauge mediation. https://doi.org/10.1140/epjc%2Fs10052-016-4192-8

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