Oscillations of sterile neutrinos from dark matter decay eliminates the IceCube-Fermi tension

IceCube has observed a flux of cosmic neutrinos, with a "bump" in the energy range 10 ≲ E / TeV ≲ 100 that creates a 3σ tension with γ-ray data from the Fermi satellite. This has been interpreted as evidence for a population of hidden cosmic-ray accelerators. We propose an alternative expl...

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Bibliographic Details
Published in:Physical review. D 2021-04, Vol.103 (7), p.1, Article 075022
Main Authors: Anchordoqui, Luis A., Barger, Vernon, Marfatia, Danny, Reno, Mary Hall, Weiler, Thomas J.
Format: Article
Language:English
Subjects:
Accelerators
Cold dark matter
Cosmic rays
Neutrinos
Oscillations
Particle dark matter
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Summary:IceCube has observed a flux of cosmic neutrinos, with a "bump" in the energy range 10 ≲ E / TeV ≲ 100 that creates a 3σ tension with γ-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 after oscillations produce the bump in the cosmic neutrino spectrum.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.103.075022