Model-Independent Description and Large Hadron Collider Implications of Suppressed Two-Photon Decay of a Light Higgs Boson

Abstract

For a Standard Model Higgs boson with mass between 115 GeV and 150 GeV, the two-photon decay mode is important for discovery at the Large Hadron Collider (LHC). We describe the interactions of a light Higgs boson in a more model-independent fashion, and consider the parameter space where there is no two-photon decay mode. We argue from generalities that analysis of the $t\bar{t}h$ discovery mode outside its normally thought of range of applicability is especially needed under these circumstances. We demonstrate the general conclusion with a specific example of parameters of a type I two-Higgs doublet theory, motivated by ideas in strongly coupled model building. We then specify a complete set of branching fractions and discuss the implications for the LHC.

4 pages, 4 figures

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Cited by in corpus (8)

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• The LHC Discovery Potential of a Leptophilic Higgs
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• Effect of Charged Scalar Loops on Photonic Decays of a Fermiophobic Higgs
• Fermiophobia in a Higgs Triplet Model
• Single Higgs-boson production at a photon-photon collider: general 2HDM versus MSSM
• Neutrino Masses, Baryon Asymmetry, Dark Matter and the Moduli Problem : A Complete Framework
• h-> mu^+ mu^- via tth Production at the LHC