# Realising Mutated Hilltop Inflation in Supergravity

**Authors:** Tony Pinhero, Supratik Pal

arXiv: 1905.04737 · 2019-08-02

## TL;DR

This paper develops supergravity models for mutated hilltop inflation, covering both large and small field scenarios, with canonical and non-canonical kinetic terms, unifying the models within a single framework.

## Contribution

It introduces supergravity models for MHI with shift symmetry, including both canonical and non-canonical kinetic terms, unifying various inflation scenarios in a comprehensive framework.

## Key findings

- Models with canonical kinetic terms based on shift symmetry successfully realize MHI.
- Non-canonical kinetic term models extend the framework to broader MHI scenarios.
- A significant portion of models can describe the entire MHI branch coherently.

## Abstract

We present $\mathcal{N}=1$ supergravity models of mutated hilltop inflation (MHI) for both large and small field sectors. Models with canonical kinetic terms are developed based on a shift symmetric K\"ahler potential in inflaton superfield, and with a superpotential linear in Goldstino superfield. We also construct models with non-canonical kinetic terms for MHI by generalizing the shift symmetry. We found that a good fraction of the models can address the entire branch of MHI in a single framework.

## Full text

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## Figures

4 figures with captions in the complete paper: https://tomesphere.com/paper/1905.04737/full.md

## References

20 references — full list in the complete paper: https://tomesphere.com/paper/1905.04737/full.md

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Source: https://tomesphere.com/paper/1905.04737