The bulk Higgs in the Deformed RS Model

TL;DR

This paper investigates the properties and detection prospects of a light Kaluza-Klein Higgs in a deformed Randall-Sundrum model, highlighting its decay into top quark pairs and potential observability at the LHC.

Contribution

It demonstrates that a light KK Higgs can exist in the deformed RS model and proposes a search strategy using substructure techniques at the LHC.

Findings

KK Higgs mass range 800 GeV to 1.3 TeV.

Higgs is gaugephobic and decays mainly into t-tbar.

Potential for LHC detection using substructure methods.

Abstract

The Randall-Sundrum model with a deformed metric can generate light Kaluza-Klein (KK) Higgs modes consistent with the electroweak precision analysis for a certain range of parameters. The first KK mode of the Higgs ($h_{1}$) in such a model could lie in the mass range varying from 800 GeV to 1.3 TeV. We find that the $h_{1}$ is gaugephobic and decays dominantly into a $t\bar{t}$ pair. The search strategy for $h_{1}$ decaying to $t\bar{t}$ at the Large Hadron Collider (LHC) in this low mass range has been studies. We have used substructure tools to suppress the large QCD background associated with this channel. We find that $h_{1}$ can be probed at the LHC.