Dressing the inflaton with the Standard Model gauge group

TL;DR

This paper explores embedding inflation within a minimal supersymmetric Standard Model extension where the inflaton has Standard Model charges, eliminating the need for an ad-hoc scalar and linking cosmology with particle physics.

Contribution

It demonstrates that inflation can be realized within a minimal supersymmetric Standard Model, connecting inflationary dynamics directly to known particle physics without additional scalar fields.

Findings

Inflation can be embedded in the minimal supersymmetric Standard Model.

The model successfully explains cosmic microwave background anisotropies.

LHC data could provide insights into the inflaton.

Abstract

In this talk we will discuss how inflation can be embedded within a minimal extension of the Standard Model where the inflaton carries the Standard Model charges. There is no need of an ad-hoc scalar field to be introduced in order to explain the temperature anisotropy of the cosmic microwave background radiation, all the ingredients are present within a minimal supersymmetric Standard Model. The model is robust enough to provide a successful exit from inflation with all observed matter in the universe. This is a triumph for an inflationary paradigm which has always begged a simple question: can we identify the inflaton in a laboratory. We will briefly discuss how LHC can shed some insight into the inflaton.