Higgs Production from Gluon Fusion in Warped Extra Dimensions

TL;DR

This paper analyzes how warped extra dimension models can cause significant deviations in Higgs boson production and decay rates via loop-induced couplings to gluons and photons, even if new physics is beyond LHC reach.

Contribution

It provides a detailed calculation of Higgs couplings in warped extra dimensions, highlighting potential large corrections to Higgs production and decay.

Findings

Corrections to hgg and hγγ couplings can be very large.

Deviations in Higgs production and decay rates are sizable.

Effects are significant even with heavy new physics states.

Abstract

We present an analysis of the loop-induced couplings of the Higgs boson to the massless gauge fields (gluons and photons) in the warped extra dimension models where all Standard Model fields propagate in the bulk. We show that in such models corrections to the hgg and $h{\gamma}{\gamma}$ couplings are potentially very large. These corrections can lead to generically sizable deviations in the production and decay rates of the Higgs boson, even when the new physics states lie beyond the direct reach of the LHC.