Trilinear gauge boson couplings in the gauge-Higgs unification

TL;DR

This paper investigates how gauge-Higgs unification models can alter trilinear gauge boson couplings and related parameters, providing constraints based on experimental data to explore physics beyond the Standard Model.

Contribution

It analyzes TGCs within an $SU(3)_W\otimes U(1)'$ gauge-Higgs unification framework, highlighting potential deviations from the Standard Model and constraining model parameters.

Findings

TGCs and the $\rho$ parameter may deviate from Standard Model predictions.

Constraints on model parameters are derived from experimental observables.

Mass spectrum of neutral gauge bosons is carefully analyzed with brane-localized mass terms.

Abstract

We examine trilinear gauge boson couplings (TGCs) in the context of the $SU(3)_W\otimes U(1)'$ gauge-Higgs unification scenario. The TGCs play important roles in the probes of the physics beyond the standard model, since they are highly restricted by the experiments. We discuss mass spectrum of the neutral gauge boson with brane-localized mass terms carefully and find that the TGCs and $\rho$ parameter may deviate from standard model predictions. Finally we put a constraint from these observables and discuss the possible parameter space.