Connecting Primordial Black Hole to boosted sub-GeV Dark Matter through neutrino
Abstract
The explorations of alternative dark matter (DM) candidates beyond WIMP motivated primordial black holes (PBHs) or sub-GeV DM particle in the Milky Way. Neutrinos from PBH evaporation at the present times play as a novel medium boosting sub-GeV DM and leaving signatures in the terrestrial experiments. We explore the boosted DM by the neutrino flux from PBH evaporation (PBH) so as to connect the macroscopic PBHs to sub-GeV DM particle. We consider this PBH scenario to interpret the XENON1T keV excess. The projected bounds on the sub-GeV DM-electron scattering cross section and the fraction of DM composed of PBHs f PBH are imposed for future experiments.
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