Effect of Charged Scalar Loops on Photonic Decays of a Fermiophobic Higgs
| Autor: | Akeroyd, A. G., Diaz, Marco A., Rivera, Maximiliano A. |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Phys.Rev.D76:115012,2007 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.76.115012 |
| Popis: | Higgs bosons with very suppressed couplings to fermions ("Fermiophobic Higgs bosons", h_f) can decay to two photons (\gamma\gamma) 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 -> \gamma\gamma is 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. Comment: 18 pages, 5 figures, clarifications added, one reference added, accepted by Physical Review D |
| Databáze: | arXiv |
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