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Novel constraints o...
Novel constraints on mixed dark-matter scenarios of primordial black holes and WIMPs
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- Boucenna, Sofiane M. (författare)
- KTH,Partikel- och astropartikelfysik,AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden
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- Kühnel, Florian (författare)
- KTH,Partikel- och astropartikelfysik,AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden
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- Ohlsson, Tommy, 1973- (författare)
- KTH,Partikel- och astropartikelfysik,AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden;Univ Iceland, Sci Inst, Dunhaga 3, IS-107 Reykjavik, Iceland
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- Visinelli, Luca (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Nordiska institutet för teoretisk fysik (Nordita),AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden.;Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden.;NORDITA, AlbaNova Univ Ctr, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
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(creator_code:org_t)
- 2018-07-02
- 2018
- Engelska.
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Ingår i: Journal of Cosmology and Astroparticle Physics. - : IOP PUBLISHING LTD. - 1475-7516. ; :7
- Relaterad länk:
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http://arxiv.org/pdf...
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https://arxiv.org/ab...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We derive constraints on mixed dark-matter scenarios consisting of primordial black holes (PBHs) and weakly interacting massive particles (WIMPs). In these scenarios, we expect a density spike of the WIMPs that are gravitationally bound to the PBHs, which results in an enhanced annihilation rate and increased indirect detection prospects. We show that such scenarios provide strong constraints on the allowed fraction of PBHs that constitutes the dark matter, depending on the WIMP mass m(x) and the velocity-averaged annihilation cross-section . For the standard scenario with m(x) = 100 GeV and = 3 x 10(-26) cm(3)/s, we derive bounds that are stronger than all existing bounds for PBHs with masses 10(-12) M-circle dot less than or similar to M-BH less than or similar to 10(4) where M-circle dot, is the solar mass, and mostly so by several orders of magnitude.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- dark matter theory
- primordial black holes
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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