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arXiv · 0708.1939

Effect of Charged Scalar Loops on Photonic Decays of a Fermiophobic Higgs

A. G. Akeroyd·Marco A. Diaz·Maximiliano A. Rivera
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Abstract

Higgs bosons with very suppressed couplings to fermions ("Fermiophobic Higgs bosons", h_f) can decay to two photons (γγ) with a branching ratio significantly larger than that expected for the Standard Model Higgs boson for m_{h_f}<150 GeV. Such a particle would give a clear signal at the LHC and can arise in the Two Higgs Doublet Model (type I) in which h_f -> γγis mediated by W^+ and charged Higgs boson (H^+) loops. We show that the H^+ loops can cause both constructive and destructive contributions with a magnitude considerably larger than the anticipated precision in the measurement of the photonic decay channel at future hadron and lepton colliders.

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A. G. Akeroyd, Marco A. Diaz, Maximiliano A. Rivera. 2007-11-16. Effect of Charged Scalar Loops on Photonic Decays of a Fermiophobic Higgs. https://doi.org/10.1103/physrevd.76.115012

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