Inflation and High-Scale Supersymmetry with an EeV Gravitino - Archive ouverte HAL
Article Dans Une Revue Physical Review D Année : 2017

Inflation and High-Scale Supersymmetry with an EeV Gravitino

Résumé

We consider inflation and supersymmetry breaking in the context of a minimal model of supersymmetry in which the only “low” energy remnant of supersymmetry is the gravitino with a mass of order an EeV. In this theory, the supersymmetry breaking scale is above the inflaton mass, m≃3×1013  GeV, as are all sfermion and gaugino masses. In particular, for a no-scale formulation of Starobinsky-like inflation using the volume modulus T, we show that inflation can be accommodated even when the supersymmetry breaking scale is very large. Reheating is driven through a gravitational coupling to the two Higgs doublets and is enhanced by the large μ-parameter. This leads to gravitino cold dark matter where the mass is constrained to be in the range 0.1  EeV≲m3/2≲1000  EeV.
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Dates et versions

hal-01704410 , version 1 (26-02-2024)

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Emilian Dudas, Tony Gherghetta, Yann Mambrini, Keith A. Olive. Inflation and High-Scale Supersymmetry with an EeV Gravitino. Physical Review D, 2017, 96 (11), pp.115032. ⟨10.1103/PhysRevD.96.115032⟩. ⟨hal-01704410⟩
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