http://arxiv.org/abs/1602.04219
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.
D. Pappadopulo, J. Ruderman and G. Trevisan
Tue, 16 Feb 16
68/71
Comments: 5 pages, 4 figures
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