Dark Matter with Two Inert Doublets plus One Higgs Doublet
Dark Matter with Two Inert Doublets plus One Higgs Doublet
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.
hep-ph
Keus, Venus
f56212de-96d7-4955-8c56-561910f7f167
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Sokolowska, Dorota
22a8f2fc-000d-4a70-a0c8-bb0982631654
5 November 2014
Keus, Venus
f56212de-96d7-4955-8c56-561910f7f167
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Sokolowska, Dorota
22a8f2fc-000d-4a70-a0c8-bb0982631654
Keus, Venus, King, Stephen F., Moretti, Stefano and Sokolowska, Dorota
(2014)
Dark Matter with Two Inert Doublets plus One Higgs Doublet.
Journal of High Energy Physics.
(doi:10.1007/JHEP11(2014)016).
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.
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Published date: 5 November 2014
Keywords:
hep-ph
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Local EPrints ID: 408838
URI: http://eprints.soton.ac.uk/id/eprint/408838
ISSN: 1029-8479
PURE UUID: 4159b9ca-7dcd-43c8-bbcb-cc7e45c550be
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Date deposited: 28 May 2017 04:03
Last modified: 16 Mar 2024 03:34
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Author:
Venus Keus
Author:
Dorota Sokolowska
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