Sub-eV Hubble scale inflation within gauge mediated supersymmetry breaking

Abstract

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

Comments: 4 revtex pages