Constraints on heavy decaying dark matter with current gamma-ray measurements

Among the several strategies for indirect searches of dark matter, a very promising one is to look for the gamma-rays from decaying dark matter. Here we use the most up-to-date upper bounds on the gamma-ray flux from 10 5 to 10 11 GeV, obtained from CASA-MIA, KASCADE, KASCADE-Grande, Pierre Auger Ob...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2021-11, Vol.2021 (11), p.35
Main Authors: Chianese, Marco, Fiorillo, Damiano F.G., Hajjar, Rasmi, Miele, Gennaro, Saviano, Ninetta
Format: Article
Language:English
Subjects:
Augers
Dark current
Dark matter
dark matter theory
Decay
Gamma rays
Neutrinos
Searching
Telescopes
ultra high energy photons and neutrinos
Upper bounds
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Among the several strategies for indirect searches of dark matter, a very promising one is to look for the gamma-rays from decaying dark matter. Here we use the most up-to-date upper bounds on the gamma-ray flux from 10 5 to 10 11 GeV, obtained from CASA-MIA, KASCADE, KASCADE-Grande, Pierre Auger Observatory, Telescope Array and EAS-MSU. We obtain global limits on dark matter lifetime in the range of masses m DM  = [10 7 -10 15 ] GeV. We provide the bounds for a set of decay channels chosen as representatives. The constraints derived here are new and cover a region of the parameter space not yet explored. We compare our results with the projected constraints from future neutrino telescopes, in order to quantify the improvement that will be obtained by the complementary high-energy neutrino searches.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2021/11/035