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

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

2009-06-17

arxiv.org/abs/0906.3182v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

5 pages, 3 figures. Extended variant of the talk prepared for the 31st International Cosmic Ray Conference, to be held in Lodz

Scientific paper

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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