Dark Matter with Two Inert Doublets plus One Higgs Doublet

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Keus , V , King , S F , Moretti , S & Sokolowska , D 2014 , ' Dark Matter with Two Inert Doublets plus One Higgs Doublet ' Journal of High Energy Physics , no. 11 , 016 . DOI: 10.1007/JHEP11(2014)016

Title: Dark Matter with Two Inert Doublets plus One Higgs Doublet
Author: Keus, Venus; King, Stephen F.; Moretti, Stefano; Sokolowska, Dorota
Contributor: University of Helsinki, Particle Physics and Astrophysics
Date: 2014-11-05
Language: eng
Number of pages: 41
Belongs to series: Journal of High Energy Physics
ISSN: 1029-8479
URI: http://hdl.handle.net/10138/144463
Abstract: Following the discovery of a Higgs boson, there has been renewed interest in the general 2-Higgs-Doublet Model (2HDM). A model with One Inert Doublet plus One Higgs Doublet (I(1+1)HDM), where one of the scalar doublets is "inert" (since it has no vacuum expectation value and does not couple to fermions) has an advantage over the 2HDM since it provides a good Dark Matter (DM) candidate, namely the lightest inert scalar. Motivated by the existence of three fermion families, here we consider a model with two scalar doublets plus one Higgs doublet (I(2+1)HDM), where the two scalar doublets are inert. The I(2+1)HDM has a richer phenomenology than either the I(1+1)HDM or the 2HDM. We discuss the new regions of DM relic density in the I(2+1)HDM with simplified couplings and address the possibility of constraining the model using recent results from the Large Hadron Collider (LHC) and DM direct detection experiments.
Subject: hep-ph
114 Physical sciences

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