Supergravity origin of the MSSM inflation

Abstract

We consider the supergravity origin of the recently proposed MSSM inflationary model, which relies on the existence of a saddle point along a dimension six flat direction. We derive the conditions that the Kahler potential has to satisfy for the saddle point to exist irrespective of the hidden sector vevs. We show that these conditions are satisfied by a simple class of Kahler potentials, which we find to have a similar form as in various string theory compactifications. For these potentials, slow roll MSSM inflation requires no fine tuning of the soft supersymmetry breaking parameters.

v3: 10 pages, no figures; version accepted for publication. Typos corrected

References in corpus (7)

• Cosmological consequences of MSSM flat directions
• Gauge invariant MSSM inflaton
• Cosmogenic Neutrinos from the propagation of Ultra High Energy Nuclei
• MSSM with Soft SUSY Breaking Terms from D7-Branes with Fluxes
• Cheng-Weyl Vector Field and its Cosmological Application
• Probing the parameter space for an MSSM inflation and the neutralino dark matter
• The Price of WMAP Inflation in Supergravity

Cited by in corpus (14)

• Encyclopaedia Inflationaris
• Particle physics models of inflation and curvaton scenarios
• Low & High scale MSSM inflation, gravitational waves and constraints from Planck
• Inflection point inflation within supersymmetry
• Constraining $\mathcal{N}=1$ supergravity inflationary framework with non-minimal Kähler operators
• Warm Inflection
• Inflection point inflation: WMAP constraints and a solution to the fine-tuning problem
• Kaehler Potentials for Hilltop F-term Hybrid Inflation
• Inflation with large supergravity corrections
• MSSM inflation, dark matter, and the LHC
• MSSM-inspired multifield inflation
• Bound on largest $r\lesssim 0.1$ from sub-Planckian excursions of inflaton
• Implementing Hilltop F-term Hybrid Inflation in Supergravity
• Generically large nongaussianity in small multifield inflation