CP violating scalar Dark Matter

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http://hdl.handle.net/10138/183455

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Cordero-Cid , A , Hernandez-Sanchez , J , Keus , V , King , S F , Moretti , S , Rojas , D & Sokolowska , D 2016 , ' CP violating scalar Dark Matter ' , Journal of High Energy Physics , vol. 2016 , no. 12 . https://doi.org/10.1007/JHEP12(2016)014

Title: CP violating scalar Dark Matter
Author: Cordero-Cid, A.; Hernandez-Sanchez, J.; Keus, V.; King, S. F.; Moretti, S.; Rojas, D.; Sokolowska, D.
Contributor: University of Helsinki, Department of Physics
Date: 2016-12-05
Language: eng
Number of pages: 38
Belongs to series: Journal of High Energy Physics
ISSN: 1029-8479
URI: http://hdl.handle.net/10138/183455
Abstract: We study an extension of the Standard Model (SM) in which two copies of the SM scalar SU(2) doublet which do not acquire a Vacuum Expectation Value (VEV), and hence are inert, are added to the scalar sector. We allow for CP-violation in the inert sector, where the lightest inert state is protected from decaying to SM particles through the conservation of a Z(2) symmetry. The lightest neutral particle from the inert sector, which has a mixed CP-charge due to CP-violation, is hence a Dark Matter (DM) candidate. We discuss the new regions of DM relic density opened up by CP-violation, and compare our results to the CP-conserving limit and the Inert Doublet Model (IDM). We constrain the parameter space of the CP-violating model using recent results from the Large Hadron Collider (LHC) and DM direct and indirect detection experiments.
Subject: Beyond Standard Model
Cosmology of Theories beyond the SM
CP violation
Higgs Physics
LHC
114 Physical sciences
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