Dissection of an SO(5) x U(1) Gauge-Higgs Unification Model

TL;DR

This paper investigates a 5D warped gauge-Higgs unification model where the Higgs is a gauge field component, analyzing its properties and constraints from experimental data using a systematic Green's function approach.

Contribution

It introduces a systematic Green's function method to analyze gauge-Higgs unification models and explores the parameter space constrained by experimental measurements.

Findings

The model can produce a small hierarchy parameter s = v/f.

Constraints from Higgs mass and top partners limit model parameters.

The Green's function approach effectively computes model properties as a power series.

Abstract

We analyze models of electroweak symmetry breaking in warped 5-dimensional space with gauge bosons and fermions in the bulk. The Higgs boson is identified with the 5th component of a gauge field. We dynamically generate the Higgs potential using a competition between the top quark multiplet and another fermion multiplet to create a little hierarchy characterized by a small parameter s = v/f. Using a Green's function method, we compute the properties of the model systematically as a power series in s. We discuss the constraints on this model from the measured value of the Higgs mass, the masses of top quark partners, and precision electroweak observables.