Gravity-mediated (or composite) dark matter

Sanz, Veronica, Park, Myeonghun and Lee, Hyun Min (2014) Gravity-mediated (or composite) dark matter. European Physical Journal C: Particles and Fields, 74 (2715). ISSN 1434-6044

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Abstract

Dark matter could have an electroweak origin, yet it could communicate with the visible sector exclusively through gravitational interactions. In a setup addressing the hierarchy problem, we propose a new dark-matter scenario where gravitational mediators, arising from the compactification of extra dimensions, are responsible for dark-matter interactions and its relic abundance in the Universe. We write an explicit example of this mechanism in warped extra dimensions and work out its constraints. We also develop a dual picture of the model, based on a four-dimensional scenario with partial compositeness. We show that gravity-mediated dark matter is equivalent to a mechanism of generating viable dark matter scenarios in a strongly coupled, near-conformal theory, such as in composite Higgs models.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QB Astronomy
Depositing User: Jill Kirby
Date Deposited: 02 Jul 2014 12:32
Last Modified: 10 Mar 2017 11:35
URI: http://sro.sussex.ac.uk/id/eprint/49185

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