Higgs > gamma gamma , Zgamma in the Inert Doublet Model
Abstract
An analysis of the Higgs boson decay rates to $\gamma\gamma$ and $Z\gamma$ in the Inert Doublet Model is presented. We study the correlation between the two rates and perform extended analysis of the twophoton rate ($R_{\gamma\gamma}$). We study both the possibility of enhancing and suppressing $R_{\gamma\gamma}$ and find constraints for masses of the scalar particles (in particular the dark matter (DM) candidate and the charged scalar) and their couplings to the Higgs boson. We also combine the resulting constraints with those following from the WMAP measurements of the DM relic density, obtaining stringent constraints on different dark matter scenarios.
 Publication:

Acta Physica Polonica B
 Pub Date:
 2013
 DOI:
 10.5506/APhysPolB.44.2163
 arXiv:
 arXiv:1309.7880
 Bibcode:
 2013AcPPB..44.2163K
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 5 pages, 5 figures, contribution to the proceedings of the conference "Matter To The Deepest, Recent Developments In Physics Of Fundamental Interactions, XXXVII International Conference of Theoretical Physics" (16 September, Ustron, Poland), v2: minor changes, matches published version