$H \to b \bar{b}, \tau \bar{\tau}$ in Gauge-Higgs Unification

TL;DR

This paper investigates how gauge-Higgs unification models alter Higgs boson signals, specifically suppressing the gluon fusion production and decay channels to bottom quarks and tau leptons compared to the Standard Model.

Contribution

It provides a detailed analysis of deviations in Higgs production and decay processes within gauge-Higgs unification frameworks, highlighting the suppression effects relative to the Standard Model.

Findings

Higgs production via gluon fusion is suppressed in gauge-Higgs unification.

Decay rates to bottom quarks and tau leptons are affected by the model.

Signal strength of Higgs to bar{b} and auar{ au} is reduced compared to SM.

Abstract

We study the deviation of Higgs production through the gluon fusion process and the decay of Higgs boson to the bottom quark and the tau lepton in gauge-Higgs unification from the Standard Model prediction. We find that the signal strength of $gg \to H \to b\bar{b}, \tau\bar{\tau}$ is necessarily suppressed comparing to the SM predictions due to the dominant suppression of the Higgs production via gluon fusion.