Inflection point in running kinetic term inflation

TL;DR

This paper explores inflection point inflation within a supergravity framework featuring a running kinetic term, demonstrating compatibility with Planck 2015 observational data for key inflationary parameters.

Contribution

It introduces a novel approach combining inflection point inflation with running kinetic terms in supergravity, analyzing its inflationary dynamics and observational predictions.

Findings

Predicted scalar spectral index within Planck 2015 constraints

Tensor-to-scalar ratio compatible with observational data

Inflationary dynamics consistent with supergravity models

Abstract

In this work, we consider inflection point inflation in the framework of running kinetic term inflation in supergravity. We study the inflationary dynamics and show that the predicted value of the scalar spectral index and tensor-to-scalar ratio can lie within the $1\sigma$ confidence region allowed by the result of Planck 2015.