h\to \gamma \gamma in Inert Higgs Doublet Model
2012
Motivated by the recent result reported from LHC on the di-photon search for a Standard Model (SM) Higgs-like
boson. We discuss the implications of this possible signal in the framework of the Inert Higgs Doublet Model (IHDM), taking into account previous limits from Higgs searches at LEP, the
Tevatronand the LHC as well as constraints from
unitarity, vacuum stability and electroweak precision tests. We show that the charged Higgs contributions can interfere constructively or destructively with the W
gauge bosonsloops leading to enhancement or suppression of the di-photon rate with respect to SM rate. We show also that the invisible decay of the Higgs, if open, could affect the total width of the SM Higgs
bosonand therefore suppress the di-photon rate.
Keywords:
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Correction
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