Constraints on radion in a warped extra dimension model from Higgs boson searches at the LHC

Abstract

We study constraints on the radion mass and couplings in the Randall-Sundrum model from the recent LHC data on the Standard Model (SM) Higgs boson searches. When the radion is heavy enough so that it can decay into a pair of on-shell Z-bosons, we find that the ZZ channel gives a stringent constraint. For example, if the radion mass m_ϕis 200 GeV, the scale Λ_ϕwhich characterizes the interactions of the radion with the SM fields must be larger than 5 TeV. Even for m_ϕ=1 TeV, we find that the lower bound on Λ_ϕis 2 TeV.

10 pages, 3 figures. v2: References added. Discussions added in Section 5. Results unchanged. v3: typos corrected, accepted for publication in Mod. Phys. Lett. A

References in corpus (5)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Light scalar at LHC: the Higgs or the dilaton?
• Radion Phenomenology in Realistic Warped Space Models
• Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production

Cited by in corpus (10)

• Alternatives to an Elementary Higgs
• Gravity stabilizes itself
• Higgs-radion similarity in production processes involving off-shell fermions
• Higgs-radion mixing in stabilized brane world models
• Interactions of a Stabilized Radion and Duality
• Probing Higgs-radion mixing in warped models through complementary searches at the LHC and the ILC
• Mixed Higgs-Radion States at the LHC -- a Detailed Study
• Probing the light radion through diphotons at the Large Hadron Collider
• Comparison of associated Higgs boson-radion and Higgs boson pair production processes
• Production and decay of radion in Randall-Sundrum model at a photon collider