An improved gamma-ray limit on the density of PBHs

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dc.creatorBarrau, A.
dc.creatorBoudoul, G.
dc.creatorDerome, L.
dc.date2003-04-29
dc.date.accessioned2026-07-07T02:08:21Z
dc.date.available2026-07-07T02:08:21Z
dc.descriptionGamma-rays are, with antiprotons, a very efficient way to derive upper limits on the density of evaporating black holes. They have been successfully used in the last decades to severely constrain the amount of Primordial Black Holes (PBHs) in our Universe. This article suggests a little refinement, based on the expected background, to improve this limit by a factor of three. The resulting value is : Omega_PBH < 3.3E-9.
dc.descriptionTo appear in the 28th ICRC conference proceedings
dc.identifierhttps://arxiv.org/abs/astro-ph/0304528
dc.identifierhttp://arxiv.org/abs/astro-ph/0304528
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/6015
dc.subjectAstrophysics
dc.titleAn improved gamma-ray limit on the density of PBHs
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