A minimal model for SU(N) vector dark matter

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http://hdl.handle.net/10138/159469

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Di Chiara , S & Tuominen , K 2015 , ' A minimal model for SU(N) vector dark matter ' , Journal of High Energy Physics , vol. 2015 , no. 11 , 188 . https://doi.org/10.1007/JHEP11(2015)188

Title: A minimal model for SU(N) vector dark matter
Author: Di Chiara, Stefano; Tuominen, Kimmo
Contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Department of Physics
Date: 2015-11-26
Language: eng
Number of pages: 15
Belongs to series: Journal of High Energy Physics
ISSN: 1029-8479
URI: http://hdl.handle.net/10138/159469
Abstract: We study an extension of the Standard Model featuring a hidden sector that consists of a new scalar charged under a new SU(N)(D) gauge group, singlet under all Standard Model gauge interactions, and coupled with the Standard Model only via a Higgs portal. We assume that the theory is classically conformal, with electroweak symmetry breaking dynamically induced via the Coleman-Weinberg mechanism operating in the hidden sector. Due to the symmetry breaking pattern, the SU(N)(D) gauge group is completely Higgsed and the resulting massive vectors of the hidden sector constitute a stable dark matter candidate. We perform a thorough scan over the parameter space of the model at different values of N = 2, 3, and 4, and investigate the phenomenological constraints. We find that N = 2, 3 provide the most appealing model setting in light of present data from colliders and dark matter direct search experiments. We expect a heavy Higgs to be discovered at LHC by the end of Run II or the N = 3 model to be ruled out.
Subject: Beyond Standard Model
Higgs Physics
RADIATIVE-CORRECTIONS
114 Physical sciences
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