Published May 2019 | Version v1
Journal article

Starobinsky-like inflation and soft-SUSY breaking

  • 1. University of Southampton, School of Physics and Astronomy (United Kingdom)

Description

We study a version of Starobinsky-like inflation in no-scale supergravity (SUGRA) where a Polonyi term in the hidden sector breaks supersymmetry (SUSY) after inflation, providing a link between the gravitino mass and inflation. We extend the theory to the visible sector and calculate the soft-SUSY breaking parameters depending on the modular weights in the superpotential and choice of Kähler potential. We are led to either no-scale SUGRA or pure gravity mediated SUSY breaking patterns, but with inflationary constraints on the Polonyi term setting a strict upper bound on the gravitino mass m3/2 < 103 TeV. Since gaugino masses are significantly lighter than m3/2, this suggests that SUSY may be discovered at the LHC or FCC.

Additional details

Identifiers

Publishing Information

Journal Title
Journal of High Energy Physics (Online)
Journal Volume
2019
Journal Issue
5
Journal Page Range
p. 1-18
ISSN
1029-8479

Optional Information

Copyright
Copyright (c) 2019 The Author(s)