Supernova Relic Neutrino Search Results from Super-Kamiokande

摘要

A search for relic neutrinos from all past core-collapse supernovae was conducted using 1496 days of data from the Super-Kamiokande detector.This analysis looked for v_e that had produced a positron with an energy greater than 18 MeV.In the absence of a signal,90% C.L.upper limits on the total flux were set for several theoretical models.Additionally,an model-insensitive upper bound was set for the supernova relic neutrino flux in the energy region E_(mu) > 19.3 MeV.