Abstract
Warped 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\bar{t} pair. We also discuss the search strategy for h_{1} decaying to t\bar{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}.
Highlights
One way of addressing this problem is called the Custodial symmetry model. In this model we have an enlarged gauge symmetry [17, 18] in the bulk, i.e an SU(3)c × SU(2)L × SU(2)R × U(1)y that acts like the custodial symmetry of the SM in protecting the ρ parameter and this extended group is broken on the IR brane to recover the SM gauge group
A quartic term is added on the IR brane to ensure electroweak symmetry breaking. a represents the dimensionless bulk mass parameter defined in the units of curvature, k
As we have focused on b = 2, the zero KK mode of the Higgs is close to the IR brane
Summary
The first KK mode of the Higgs (h1) could lie in the 1–2 TeV range in the models with a bulk custodial symmetry. 5.0 b that the profile of the zero mode and the vev localise on the TeV brane and the boundary condition on the TeV brane fixes the mass of the Higgs with the identification M1 = bk. The gauge hierarchy problem gets solved by requiring that the zero KK mode of Higgs is close to IR brane.
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