Higgs-Gluon Coupling in Warped Extra Dimensional Models with Brane Kinetic Terms

Abstract

Warped models with the Higgs confined to the weak brane and the gauge and matter fields accessing the $Ad{S}_5$ bulk provide viable setting to address the gauge hierarchy problem. Brane kinetic terms for the bulk fields are known to ease some of the tensions of these models with precision electroweak observables and flavor constraints. We study the loop-driven Higgs coupling to the gluons that are relevant to the Higgs program at LHC, in this scenario. We demonstrate a partial cancellation in the contribution of the fermionic Kaluza-Klein (KK) towers within such framework relatively independent of the 5D parameters. The entire dependence of this coupling on the new physics arises from the mixing between the Standard Model states and the KK excitations. We find that the present precision in measurement of these couplings can lead to a constraint on the KK scale up to 1.2 TeV at $95\%$ confidence level.

6 pages, 1 figure; minor modification in the title; one equation and one table added; a few clarifications and minor changes in the text; updated references; matches published version

References in corpus (8)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Pseudo-Goldstone Higgs Production via Gluon Fusion
• Warped Electroweak Breaking Without Custodial Symmetry
• TASI Lectures on a Holographic View of Beyond the Standard Model Physics
• Higgs Production and Decay in Models of a Warped Extra Dimension with a Bulk Higgs
• Higgs Couplings and Phenomenology in a Warped Extra Dimension
• Beyond The Standard Model: Some Aspects of Supersymmetry and Extra Dimension

Cited by in corpus (5)

• Status of Flavour Maximal Non-minimal Universal Extra Dimension
• Fat brane and seesaw mechanism in extra dimensions
• Higgs boson production and decay in 5D warped models
• The Two Scales of New Physics in Loop-Induced Higgs Couplings
• Ghosts- and Tachyon-Free Regions of the Randall-Sundrum Model Parameter Space