Cannibal Dark Matter
High Energy Physics - Phenomenology
2016-12-01 v3 Cosmology and Nongalactic Astrophysics
Abstract
A thermally decoupled hidden sector of particles, with a mass gap, generically enters a phase of cannibalism in the early Universe. The Standard Model sector becomes exponentially colder than the hidden sector. We propose the Cannibal Dark Matter framework, where dark matter resides in a cannibalizing sector with a relic density set by 2-to-2 annihilations. Observable signals of Cannibal Dark Matter include a boosted rate for indirect detection, new relativistic degrees of freedom, and warm dark matter.
Cite
@article{arxiv.1602.04219,
title = {Cannibal Dark Matter},
author = {Duccio Pappadopulo and Joshua T. Ruderman and Gabriele Trevisan},
journal= {arXiv preprint arXiv:1602.04219},
year = {2016}
}
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