2021/01/31 by Luis A. Anchordoqui, Vernon Barger, Danny Marfatia +2
Physics and Astronomy · #astro-ph.HE #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.103.075022
published as Phys. Rev. D 103, 075022 (2021) · 10 pages, 3 figures. Note added. In version 3 of arXiv:2011.01632, bounds on the decaying dark matter component are significantly relaxed. Since our fiducial values are comfortably consistent with the corrected bounds, our conclusions remain unchanged
arxiv created 2021/05/27 · arxiv updated 2021/05/31
IceCube has observed a flux of cosmic neutrinos, with a "bump" in the energy range 10 \lesssim E/\rm TeV \lesssim 100 that creates a 3σ tension with gamma-ray data from the Fermi satellite. This has been interpreted as evidence for a population of hidden cosmic-ray accelerators. We propose an alternative explanation of this conundrum on the basis of cold dark matter which decays into sterile neutrinos that after oscillations produce the bump in the cosmic neutrino spectrum.