English

Higgs -> $\gamma\gamma$, $Z\gamma$ in the Inert Doublet Model

High Energy Physics - Phenomenology 2014-01-03 v2

Abstract

An analysis of the Higgs boson decay rates to γγ\gamma\gamma and ZγZ\gamma in the Inert Doublet Model is presented. We study the correlation between the two rates and perform extended analysis of the two-photon rate (RγγR_{\gamma\gamma}). We study both the possibility of enhancing and suppressing RγγR_{\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.

Keywords

Cite

@article{arxiv.1309.7880,
  title  = {Higgs -> $\gamma\gamma$, $Z\gamma$ in the Inert Doublet Model},
  author = {Maria Krawczyk and Dorota Sokolowska and Pawel Swaczyna and Bogumila Swiezewska},
  journal= {arXiv preprint arXiv:1309.7880},
  year   = {2014}
}

Comments

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" (1-6 September, Ustron, Poland), v2: minor changes, matches published version