A Higgs in the Warped Bulk and LHC signals

International audienceWarped models with the Higgs in the bulk can generate light Kaluza-Klein (KK) Higgs modes consistent with the electroweak precision analysis. The first KK mode of the Higgs (h$_{1}$) could lie in the 1-2 TeV range in the models with a bulk custodial symmetry. We find that the h$_{1}$ is gaugephobic and decays dominantly into a $ t\overline{t} $ pair. We also discuss the search strategy for h$_{1}$ decaying to $ t\overline{t} $ at the Large Hadron Collider. We used substructure tools to suppress the large QCD background associated with this channel. We find that h$_{1}$ can be probed at the LHC run-2 with an integrated luminosity of 300 fb$^{−1}$