Illustrating SUSY breaking effects on various inflation mechanisms

TL;DR

This paper analyzes how supersymmetry breaking influences various inflation models, providing a universal framework to understand the effects on inflaton potential flatness within conformal supergravity.

Contribution

It introduces a universal description of SUSY breaking effects on inflation models using a field-dependent scaling factor in conformal supergravity.

Findings

The critical SUSY-breaking scale varies across models.

A universal description of SUSY effects is established.

Implications for constructing SUSY-based cosmological models.

Abstract

We consider the supersymmetry breaking effects on typical inflation models with different types of K\"ahler potential. The critical size of supersymmetry-breaking scale, above which the flatness of the inflaton potential is spoiled, drastically changes model by model. We present the universal description of such effects in terms of a field-dependent scaling factor by which gravity-mediated supersymmetry breaking terms are suppressed or enhanced, based on the conformal supergravity framework. Such a description would be useful when we estimate them in constructing supersymmetric models of particle cosmology.