https://doi.org/10.1140/epjc/s10052-014-2715-8
Regular Article - Theoretical Physics
Gravity-mediated (or composite) dark matter
1
Department of Physics, Chung-Ang University, Seoul, 156-756, Korea
2
Theory Division, Physics Department, CERN, 1211 , Geneva 23, Switzerland
3
Department of Physics Astronomy, York University, Toronto, ON, M3J 1P3, Canada
4
Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, UK
* e-mail: veronica.hirn@gmail.com
Received:
16
July
2013
Accepted:
16
December
2013
Published online:
12
February
2014
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.
© The Author(s), 2014