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arXiv · 1602.04219

Cannibal Dark Matter

Duccio Pappadopulo·Joshua T. Ruderman·Gabriele Trevisan
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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.

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Duccio Pappadopulo, Joshua T. Ruderman, Gabriele Trevisan. 2016-02-12. Cannibal Dark Matter. https://doi.org/10.1103/physrevd.94.035005

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