scholarly journals Constraints on decaying dark matter from the extragalactic gamma-ray background

2015 ◽  
Vol 2015 (05) ◽  
pp. 024-024 ◽  
Author(s):  
Shin'ichiro Ando ◽  
Koji Ishiwata
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
Decaying Dark Matter

scholarly journals High-energy cosmic antiparticle excess vs. isotropic gamma-ray background problem in decaying dark matter Universe

2016 ◽  
Vol 675 (1) ◽  
pp. 012023 ◽  
Author(s):  
V V Alekseev ◽  
K M Belotsky ◽  
Yu V Bogomolov ◽  
R I Budaev ◽  
O A Dunaeva ◽  
...  
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
High Energy ◽  
Decaying Dark Matter

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

2021 ◽  
Vol 2021 (11) ◽  
pp. 035
Author(s):  
Marco Chianese ◽  
Damiano F.G. Fiorillo ◽  
Rasmi Hajjar ◽  
Gennaro Miele ◽  
Ninetta Saviano
Keyword(s):  
Dark Matter ◽  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Upper Bounds ◽  
Pierre Auger Observatory ◽  
Telescope Array ◽  
Decay Channels ◽  
Neutrino Telescopes ◽  
Decaying Dark Matter

Abstract 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 105 to 1011 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 = [107-1015] 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.

scholarly journals Detecting gamma-ray anisotropies from decaying dark matter: Prospects for Fermi LAT

2010 ◽  
Vol 81 (2) ◽  
Author(s):  
Alejandro Ibarra ◽  
David Tran ◽  
Christoph Weniger
Keyword(s):  
Dark Matter ◽  
Gamma Ray ◽  
Decaying Dark Matter
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