{"paper":{"title":"Search for Proton Decay via $p \\to e^+\\pi^0$ and $p \\to \\mu^+\\pi^0$ in 0.31 megaton$\\cdot$years exposure of the Super-Kamiokande Water Cherenkov Detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"M. Miura (The Super-Kamiokande Collaboration)","submitted_at":"2016-10-12T04:24:40Z","abstract_excerpt":"We have searched for proton decay via $p \\rightarrow e^{+} \\pi^{0}$ and $p \\rightarrow \\mu^{+} \\pi^{0}$ using Super-Kamiokande data from April 1996 to March 2015, 0.306 megaton$\\cdot$years exposure in total. The atmospheric neutrino background rate in Super-Kamiokande IV is reduced to almost half that of phase I-III by tagging neutrons associated with neutrino interactions. The reach of the proton lifetime is further enhanced by introducing new signal criteria that select the decay of a proton in a hydrogen atom. No candidates were seen in the $p \\rightarrow e^{+} \\pi^{0}$ search. Two candidat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.03597","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}