Using boosted top tagging in a four-top final state, the first Kaluza-Klein Higgs excitation in the deformed Randall-Sundrum model could be probed up to about 1.2 TeV at the high-luminosity LHC, at the 3-sigma level.
The bulk Higgs in the Deformed RS Model
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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.
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KK Higgs produced in association with a top quark pair in the bulk RS Model
Using boosted top tagging in a four-top final state, the first Kaluza-Klein Higgs excitation in the deformed Randall-Sundrum model could be probed up to about 1.2 TeV at the high-luminosity LHC, at the 3-sigma level.