Experimental search of bursts of very high energy gamma rays from primordial black holes

Details Experimental search of bursts of very high energy gamma rays from primordial black holes Experimental search of bursts of very high energy gamma rays from primordial black holes

2009-06-17

arxiv.org/abs/0906.3179v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 6 figures. A talk prepared for the 31st International Cosmic Ray Conference, to be held in Lodz, Poland, 2009

Scientific paper

The technical procedure of a search of bursts of very high energy gamma rays from evaporation of primordial black holes on air-shower array "Andyrchy" of Baksan Neutrino Observatory of Institute for Nuclear Research is described. The theoretical model used in the present work assumes that the chromosphere around the evaporating black hole does not form. For minimization of the cosmic ray background the method of multidimensional analysis of modelled as well as experimentally detected events is applied. The new upper limit on the concentration of evaporating primordial black holes in the local region of Galaxy is obtained. The comparison of the results of different experiments is given.

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