Unification of gravity, gauge fields, and Higgs bosons

TL;DR

This paper presents a unified gauge-invariant framework that combines gravity, gauge fields, and Higgs bosons, deriving their interactions from a single extended Plebanski action with spontaneous symmetry breaking.

Contribution

It introduces a novel unified action that naturally incorporates gravity, gauge fields, and Higgs bosons within a gauge-invariant formalism, linking their couplings to a single parameter.

Findings

Unified action recovers gravity, Yang-Mills, and Higgs fields.

Low-energy couplings depend on a single initial parameter.

Framework provides a consistent unification scheme.

Abstract

We consider a diffeomorphism invariant theory of a gauge field valued in a Lie algebra that breaks spontaneously to the direct sum of the spacetime Lorentz algebra, a Yang-Mills algebra, and their complement. Beginning with a fully gauge invariant action -- an extension of the Plebanski action for general relativity -- we recover the action for gravity, Yang-Mills, and Higgs fields. The low-energy coupling constants, obtained after symmetry breaking, are all functions of the single parameter present in the initial action and the vacuum expectation value of the Higgs.