Spacetime curvature and the Higgs stability during and after inflation: Gravity to the rescue?

TL;DR

This paper explores how classical gravity influences the stability of the electroweak vacuum during and after inflation, suggesting gravity alone can prevent instability without new physics beyond the Standard Model.

Contribution

It demonstrates that classical gravitational effects can stabilize the electroweak vacuum during cosmological inflation, avoiding the need for beyond Standard Model physics.

Findings

Gravity effects can prevent electroweak vacuum decay during inflation.

Standard Model physics suffices for vacuum stability with gravity considerations.

No new physics beyond the Standard Model is required for stability.

Abstract

We investigate the stability of the electroweak vacuum during and after inflation by taking into account the effects of classical gravity in the quantum dynamics. In particular we show that the possible instability may be avoided without any beyond the Standard Model physics. Talk presented at the 27th Rencontres de Blois on Particle Physics and Cosmology.