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

Preview

PDF - Published Version Download (1MB) | Preview

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

View download statistics for this item

📧 Request an update