Neutrino signals from Dark Matter scatterings around blazars

• Jacopo Nava

Neutrinos from blazars can originate from inelastic scatterings between the protons within their jets and sub-GeV dark matter (DM) around them. I will show how this mechanism can potentially account for both the IceCube detections of neutrinos from the blazar TXS 0506+056, that are otherwise challenging for astrophysical models of its jet, and also saturate the measured diffuse astrophysical neutrino flux at high energies The same DM-proton interactions will also induce an upscattered DM flux, which could yield measurable nuclear recoil signals at neutrino detectors, such as Super-K, JUNO and DUNE. I will show that searches for such DM component leave room for a variety of DM models to explain observations of IceCube high-energy neutrinos, and will provide future tests of this hypothesis.