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Sub-eV Hubble scale inflation within gauge mediated supersymmetry breaking

Rouzbeh Allahverdi·Asko Jokinen·Anupam Mazumdar
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Abstract

Minimal Supersymmetric Standard Model with gauge mediated supersymmetry breaking has all the necessary ingredients for a successful sub-eV Hubble scale inflation $H_{\rm inf} \sim 10^{-3}-10^{-1}$ eV. The model generates the right amplitude for scalar density perturbations and a spectral tilt within the range, $0.90 \leq n_s \leq 1$. The reheat temperature is $T_{\rm R} \ls 10$ TeV, which strongly prefers electroweak baryogenesis and creates the right abundance of gravitinos with a mass $m_{3/2} \gs 100$ keV to be the dark matter.

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Rouzbeh Allahverdi, Asko Jokinen, Anupam Mazumdar. 2006-10-18. Sub-eV Hubble scale inflation within gauge mediated supersymmetry breaking. https://arxiv.org/abs/hep-ph/0610243

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