Supersymmetric Inflation with the Ordinary Higgs?

TL;DR

This paper explores a D-term inflation model where the inflaton is the Standard Model Higgs, demonstrating its viability with CMB data under certain conditions.

Contribution

It introduces a Higgs-based inflation model with controlled non-renormalizable terms via R-symmetry, showing its consistency with observational data.

Findings

Higgs inflation is viable within the model.

Radiative corrections support slow-roll inflation.

Large non-renormalizable coupling is required.

Abstract

We consider a model of D-term inflation in which the inflaton coincides with the standard Higgs doublet. Non-renormalizable terms are controlled by a discrete R-symmetry of the superpotential. We consider radiative corrections to the scalar potential and find that Higgs inflation in the slow-roll approximation is viable and consistent with CMB data, although with a rather large value of the non-renormalizable coupling involved.