Cosmologically Viable Low-energy Supersymmetry Breaking

(2) Department of Physics; 3; 3); (3) Theoretical Physics Group; 4) ((1) Maryland Center for Fundamental Physics; (4) Kavli Institute for the Physics; Anson Hook (1); Berkeley; Department of Physics; Hitoshi Murayama (2

arxiv: 1801.10160 · v2 · pith:3LOBDKITnew · submitted 2018-01-30 · ✦ hep-ph

Cosmologically Viable Low-energy Supersymmetry Breaking

Anson Hook (1) , Robert McGehee (2 , 3) , Hitoshi Murayama (2 , 3 , 4) ((1) Maryland Center for Fundamental Physics , Department of Physics , University of Maryland

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(2) Department of Physics University of California Berkeley (3) Theoretical Physics Group Lawrence Berkeley National Laboratory (4) Kavli Institute for the Physics Mathematics of the Universe (WPI))

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classification ✦ hep-ph

keywords massgravitinohiggsminimalachievesallowsamelioratesbound

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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 $\mu$ problem, and achieves the observed Higgs mass and a gravitino as light as $1$-$2$ eV.

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Cosmologically Viable Low-energy Supersymmetry Breaking

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