Published in

arXiv, 2023

DOI: 10.48550/arxiv.2303.12855

IOP Publishing, Journal of Cosmology and Astroparticle Physics, 04(2023), p. 040, 2023

DOI: 10.1088/1475-7516/2023/04/040

Links

Tools

Export citation

Search in Google Scholar

Search for the evaporation of primordial black holes with H.E.S.S.

Journal article published in 2023 by F. Aharonian, :., F. Ait Benkhali, J. Aschersleben, M. Böttcher, F. Ait Benkhali, M. Backes, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, V. Barbosa Martins, B. Bi, M. Boettcher, C. Boisson and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

Full text: Unavailable

Question mark in circle
Preprint: policy unknown
Question mark in circle
Postprint: policy unknown
Question mark in circle
Published version: policy unknown

Abstract

Abstract Primordial Black Holes (PBHs) are hypothetical black holes predicted to have been formed from density fluctuations in the early Universe. PBHs with an initial mass around 1014–1015 g are expected to end their evaporation at present times in a burst of particles and very-high-energy (VHE) gamma rays. Those gamma rays may be detectable by the High Energy Stereoscopic System (H.E.S.S.), an array of imaging atmospheric Cherenkov telescopes. This paper reports on the search for evaporation bursts of VHE gamma rays with H.E.S.S., ranging from 10 to 120 seconds, as expected from the final stage of PBH evaporation and using a total of 4816 hours of observations. The most constraining upper limit on the burst rate of local PBHs is 2000 pc-3 yr-1 for a burst interval of 120 seconds, at the 95% confidence level. The implication of these measurements for PBH dark matter are also discussed.