arxiv: 0906.3182 · v1 · submitted 2009-06-17 · 🌌 astro-ph.CO · astro-ph.IM

Experimental search of bursts of gamma rays from primordial black holes using different evaporation models

E.V. Bugaev , V.B. Petkov , A.N. Gaponenko , P.A. Klimai , M.V. Andreev , A.B. Chernyaev , I.M. Dzaparova , D.D. Dzhappuev

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Zh.Sh. Guliev N.S. Khaerdinov N.F. Klimenko A.U. Kudzhaev A.V. Sergeev V.I. Volchenko G.V. Volchenko A.F. Yanin

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keywords blackdifferentholesprimordialarraysburstscosmicevaporating

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Experimental data of arrays "Andyrchy" and "Carpet-2" of Baksan Neutrino Observatory (Institute for Nuclear Research), obtained in the regime of a detection of the single cosmic-ray component, are used for a search of the bursts of cosmic gamma rays from evaporating primordial black holes. Different theoretical models of the evaporation process are used for the analysis. Distributions of the counting rate fluctuations on both arrays agree with the expectations from the cosmic ray background. The new constraints on the concentration of evaporating primordial black holes in the local region of Galaxy are obtained. The comparison of the results of different experiments is given.

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Constraints on Primordial Black Holes
astro-ph.CO 2020-02 accept novelty 4.0

Updated compilation shows PBHs are tightly constrained across 55 orders of magnitude in mass, ruling out dominant dark matter contributions except in narrow windows, with many limits carrying observational uncertainties.