Dark matter freeze-out in a nonrelativistic sector

Duccio Pappadopulo, Joshua T. Ruderman, Gabriele Trevisan

    Research output: Contribution to journalArticle

    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.

    Original languageEnglish (US)
    Article number035005
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume94
    Issue number3
    DOIs
    StatePublished - Aug 5 2016

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    dark matter
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    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Dark matter freeze-out in a nonrelativistic sector. / Pappadopulo, Duccio; Ruderman, Joshua T.; Trevisan, Gabriele.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 94, No. 3, 035005, 05.08.2016.

    Research output: Contribution to journalArticle

    Pappadopulo, Duccio ; Ruderman, Joshua T. ; Trevisan, Gabriele. / Dark matter freeze-out in a nonrelativistic sector. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2016 ; Vol. 94, No. 3.
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