PoS - Proceedings of Science
Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - GRI - Gamma Ray Indirect
Search for Primordial Black Hole evaporations with H.E.S.S.
T. Tavernier,* J.F. Glicenstein, F. Brun on behalf of the H.E.S.S. collaboration
*corresponding author
Full text: pdf
Pre-published on: July 22, 2019
Published on:
Abstract
Following LIGO results of intermediate mass black holes mergers, the idea that dark matter is composed of Primordial Black Boles (PBH), made a recent comeback.
PBHs might be formed in the early Universe through a variety of mechanisms, best known being the gravitational
collapse of overdense regions due to density fluctuations. It's widely accepted that black hole loose there mass over time through the Hawking radiation process.
Since the particle emission rate increases with black hole temperature, PBH
evaporation is a runaway process that eventually leads to a violent explosion. It has been argued that a class of ultra short gammay ray bursts are actually PBH explosions. The current upper limits on the local PBH explosion rate lie in the $10^4$--$10^5$ $\mathrm{pc}^{-3}$ $\mathrm{yr}^{-1}$ range.

This contribution reports on the search for TeV $\gamma$-ray bursts with a timescale of a few seconds, as expected from the final stage of PBHs evaporation, using 2700 hours of H.E.S.S. extragalactic observations. We present the search algorithm, statistical estimations strategies and results of this analysis.
DOI: https://doi.org/10.22323/1.358.0804
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.