http://arxiv.org/abs/1903.05096
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.
S. Koren
Thu, 14 Mar 19
35/96
Comments: 15 pages, 2 figures