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arXiv · 1001.1759

Enhancement of h --> gamma gamma in the Two Higgs Doublet Model Type I

Paul Posch
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Abstract

We show that in the Two Higgs Doublet Model (THDM) Type I the partial decay width of h --> gamma gamma can be considerably larger than in Type II, due to light charged scalars with a mass about 100 GeV, which are not yet excluded in Type I. A possible enhancement of the width compared to the SM is analyzed for different Higgs potentials, subject to constraints from tree-level unitarity, vacuum stability and electroweak precision tests.

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Paul Posch. 2010-01-12. Enhancement of h --> gamma gamma in the Two Higgs Doublet Model Type I. https://doi.org/10.1016/j.physletb.2011.01.003

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