Limits on Primordial Black Hole evaporation with the H.E.S.S. array of Cherenkov telescopes

2013/07/18 by Glicenstein, J-F., Barnacka, A., Vivier, M. +1
#FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE)

paper · doi:10.48550/arxiv.1307.4898

Abstract

Data collected by the H.E.S.S. array between 2004 and 2012 have been used to search for photon bursts from primordial black hole explosions. Bursts were searched for in a 30 second time-window. The duration of the search window has been optimized to increase the burst signal while keeping the statistical background low. No evidence for a burst signal was found. Preliminary upper limits on the local rate of PBH explosions of 1.4× 10⁴ pc^-3 yr^-1 have been obtained, which improve previously published limits by almost an order of magnitude

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