Constraining heavy decaying dark matter with the high energy gamma-ray limits
High Energy Astrophysical Phenomena
2016-10-05 v3 High Energy Physics - Phenomenology
Abstract
We consider decaying dark matter with masses GeV, as a source of ultra-high energy (UHE) gamma rays. Using recent limits on UHE gamma-ray flux for energies eV, provided by extensive air shower observatories, we put limits on masses and lifetimes of the dark matter. We also discuss possible dark matter decay origin of tentative 100 PeV photon flux detected with EAS-MSU experiment.
Keywords
Cite
@article{arxiv.1606.07354,
title = {Constraining heavy decaying dark matter with the high energy gamma-ray limits},
author = {O. E. Kalashev and M. Yu. Kuznetsov},
journal= {arXiv preprint arXiv:1606.07354},
year = {2016}
}
Comments
Journal version, to appear in PRD, 12 pages, 5 figures