Indication of Electron Antineutrinos from the Diffuse Supernova Neutrino Background
We report an indication of $\bar{\nu}_e$ from the diffuse supernova neutrino background (DSNB) based on a spectral fit analysis of a 5003.0-day dataset in Super-Kamiokande. Key improvements over previous searches include enhanced rejection of atmospheric $\nu$ backgrounds, updated evaluations of systematic uncertaintie...