Decay rates of the Higgs boson to two photons and Z plus photon in Z_2-symmetric Two Higgs Doublet Models

Abstract

Analysis of the 125 GeV Higgs boson decay rates to two photons and Z plus photon in the Inert Doublet Model is presented. We study the constraints on the masses of the scalars (in particular the Dark Matter candidate) and their couplings to the Higgs boson, coming from the h -> \gamma\gamma data and confront them with the WMAP measurements of the Dark Matter relic density.

Comments: 3 pages, 2 figures, contribution to the proceedings of the European Physical Society Conference on High Energy Physics "EPS HEP 2013" (18-24 July 2013, Stockholm, Sweden), based on arXiv:1212.4100 [hep-ph] and arXiv:1305.6266 [hep-ph]