A Strong Test of the Dark Matter Origin of the 1.4 TeV DAMPE Signal Using IceCube Neutrinos

Abstract

A tentative excess in the electron spectrum at 1.4 TeV was recently reported by the DArk Matter Particle Explorer (DAMPE). A non-astrophysical scenario in which dark matter particles annihilate or decay in a local clump has been invoked to explain the excess. If $e^{\pm }$ annihilation channels in the final states are mediated by left-handed leptons as a component in the $SU(2{)}_L$ doublet, neutrinos with similar energies should have been simultaneously produced. We demonstrate that generic dark matter models can be decisively tested by the existing IceCube data. In case of a non-detection, such models would be excluded at the $5\sigma$ level by the five-year data for a point-like source and by the ten-year data for an extended source of dark matter particles with left-handed leptons.

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Cited by in corpus (7)

• Multi-Component Dark Matter in a Non-Abelian Dark Sector
• TeV dark matter and the DAMPE electron excess
• DAMPE excess from decaying right-handed neutrino dark matter
• Two-mediator dark matter models and cosmic electron excess
• Type II Seesaw with scalar dark matter in light of AMS-02, DAMPE and Fermi-LAT
• Interpretation of the cosmic ray positron and electron excesses with an annihilating-decaying dark matter scenario
• Multicomponent Dark Matter in the Light of CALET and DAMPE