Higgs properties in the Stealth Doublet Model
Abstract
I present a model with two scalar doublets and a softly broken symmetry, where only one of the doublets gets a vacuum expectation value and couples to fermions at tree-level. The softly broken symmetry leads to interesting phenomenology such as mixing between the two doublets and a charged scalar H which can be light and dominantly decays into W γ. The model can also naturally reproduce an enhanced γ γ signal of the newly observed Higgs boson at the LHC with mass 125 GeV.
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