Neutrino – Dark Matter Scattering and Coincident Detections of UHE Neutrinos with EM Sources. (arXiv:1903.05096v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Koren_S/0/1/0/all/0/1">Seth Koren</a>
The scattering of neutrinos off dark matter can induce time delays in their
propagation compared to that of photons, which would wash out correlations
between ultra-high-energy neutrinos and electromagnetic observations of their
sources – while preserving the observed diffuse neutrino flux. This may explain
the significant discrepancy between predictions of neutrino fluxes from gamma
ray bursts and the lack of neutrinos correlated with EM observations of GRBs.
Conversely, the detection of an UHE neutrino in association with a source
provides a strong constraint on such interactions. We construct a microphysical
model of dark photon dark matter interacting through the neutrino portal which
exhibits this effect.
The scattering of neutrinos off dark matter can induce time delays in their
propagation compared to that of photons, which would wash out correlations
between ultra-high-energy neutrinos and electromagnetic observations of their
sources – while preserving the observed diffuse neutrino flux. This may explain
the significant discrepancy between predictions of neutrino fluxes from gamma
ray bursts and the lack of neutrinos correlated with EM observations of GRBs.
Conversely, the detection of an UHE neutrino in association with a source
provides a strong constraint on such interactions. We construct a microphysical
model of dark photon dark matter interacting through the neutrino portal which
exhibits this effect.
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