Electroweak breaking and Dark Matter from the common scale

Benić, Sanjin and Radovčić, Branimir (2014) Electroweak breaking and Dark Matter from the common scale. Physics Letters B, 732. pp. 91-94. ISSN 0370-2693

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Abstract

We propose a classically scale invariant extension of the Standard Model where the electroweak symmetry breaking and the mass of the Dark Matter particle come from the common scale. We introduce U(1)X gauge symmetry and X-charged scalar Φ and Majorana fermion N. Scale invariance is broken via Coleman–Weinberg mechanism providing the vacuum expectation value of the scalar Φ. Stability of the dark matter candidate N is guaranteed by a remnant Z2 symmetry. The Higgs boson mass and the mass of the Dark Matter particle have a common origin, the vacuum expectation value of Φ. Dark matter relic abundance is determined by annihilation NN→ΦΦ. We scan the parameter space of the model and find the mass of the dark matter particle in the range from 500 GeV to a few TeV.

Item Type: Article
Date: 2014
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Publisher: Elsevier
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 06 May 2014 13:42
Last Modified: 29 Aug 2014 13:04
URI: http://digre.pmf.unizg.hr/id/eprint/1001

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