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arXiv · 1801.10160

Cosmologically Viable Low-energy Supersymmetry Breaking

Anson Hook·Robert McGehee·Hitoshi Murayama
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Abstract

A recent cosmological bound on the gravitino mass, $m_{3/2}<4.7$ eV, together with LHC results on the Higgs mass and direct searches, excludes minimal gauge mediation with high reheating temperatures. We discuss a minimal, vector-mediated model which incorporates the seesaw mechanism for neutrino masses, allows for thermal leptogenesis, ameliorates the $μ$ problem, and achieves the observed Higgs mass and a gravitino as light as $1$-$2$ eV.

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Anson Hook, Robert McGehee, Hitoshi Murayama. 2018-12-29. Cosmologically Viable Low-energy Supersymmetry Breaking. https://doi.org/10.1103/physrevd.98.115036

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