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Astrophysics > High Energy Astrophysical Phenomena

arXiv:1606.07354 (astro-ph)
[Submitted on 23 Jun 2016 (v1), last revised 21 Sep 2016 (this version, v3)]

Title:Constraining heavy decaying dark matter with the high energy gamma-ray limits

Authors:O. E. Kalashev, M. Yu. Kuznetsov
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Abstract:We consider decaying dark matter with masses $10^{7} \lesssim M \lesssim 10^{16}$ GeV, as a source of ultra-high energy (UHE) gamma rays. Using recent limits on UHE gamma-ray flux for energies $E_\gamma > 2 \cdot 10^{14}$ 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.
Comments: Journal version, to appear in PRD, 12 pages, 5 figures
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Phenomenology (hep-ph)
Report number: INR-TH-2016-019
Cite as: arXiv:1606.07354 [astro-ph.HE]
  (or arXiv:1606.07354v3 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.1606.07354
Journal reference: Phys. Rev. D 94, 063535 (2016)
Related DOI: https://doi.org/10.1103/PhysRevD.94.063535

Submission history

From: Mikhail Yu. Kuznetsov [view email]
[v1] Thu, 23 Jun 2016 15:59:02 UTC (179 KB)
[v2] Tue, 28 Jun 2016 16:43:08 UTC (179 KB)
[v3] Wed, 21 Sep 2016 08:57:17 UTC (159 KB)
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