Inflation from an effective standard model of particle physics for curved space-time

TL;DR

This paper explores how an effective electroweak model in curved spacetime can lead to inflationary cosmology, linking the Higgs field to the inflaton and analyzing early universe dynamics.

Contribution

It introduces a novel effective model derived from an eight-dimensional theory to study electroweak interactions during the early universe in curved spacetime.

Findings

Recovered inflationary field equations from the model

Linked the Higgs field to the inflaton

Analyzed isospin space behavior with exact solutions

Abstract

Beginning from an effective theory in eight dimensions, Macias, Camacho and Matos proposed an effective model for the electroweak part of the Standard Model of particles in curved spacetime. Using this model, we investigate the cosmological consequences of the electroweak interaction in the early universe. We use the approximation that, near the Planck epoch, the Yang-Mills fields behave like a perfect fluid. Then we recover the field equations of inflationary cosmology, with the Higgs field directly related to the inflaton. We present some qualitative discussion about this and analyse the behavior of isospin space using some known exact solutions.