Sneutrino Inflation with $\alpha$-attractors

TL;DR

This paper enhances sneutrino inflation models by integrating them with cosmological $oldsymbol{ extalpha}$-attractors, improving their alignment with Planck data and connecting inflation with neutrino mass generation.

Contribution

It introduces a novel embedding of sneutrino inflation within $oldsymbol{ extalpha}$-attractors, improving model consistency with observational data.

Findings

Enhanced compatibility with Planck data

Unified inflation and neutrino mass mechanisms

Improved theoretical consistency

Abstract

Sneutrino inflation employs the fermionic partners of the inflaton and stabilizer field as right-handed neutrinos to realize the seesaw mechanism for light neutrino masses. We show that one can improve the latest version of this scenario and its consistency with the Planck data by embedding it in the theory of cosmological $\alpha$-attractors.