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- Title
Heavy decaying dark matter and large-scale anisotropy of high-energy cosmic rays.
- Authors
Kalashev, O.; Kuznetsov, M.
- Abstract
We examine the role of the large-scale anisotropy of the high-energy cosmic ray distribution in a search for the heavy decaying dark matter (DM) signal. Using recent anisotropy measurements from the extensive air shower (EAS) observatories, we constrain the lifetime of the DM particles with masses 10 ≤ M ≤ 10 GeV. These constraints appear to be weaker than that obtained with the high-energy gamma-ray limits. We also estimate the desired precision level for the anisotropy measurements to discern the decaying DM signal marginally allowed by the gamma-ray limits and discuss the prospects of the DM search with the modern EAS facilities.
- Subjects
DARK matter; COSMIC ray showers; ANISOTROPY; GAMMA rays; INTERSTELLAR medium
- Publication
JETP Letters, 2017, Vol 106, Issue 2, p73
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364017140016