{"paper":{"title":"A High Sensitivity Search for $\\bar{\\nu}_{e}$'s from the Sun and Other Sources at KamLAND","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"KamLAND Collaboration","submitted_at":"2003-10-23T10:46:52Z","abstract_excerpt":"Data corresponding to a KamLAND detector exposure of 0.28 kton-year has been used to search for $\\bar{\\nu}_e$'s in the energy range 8.3 MeV $<$ E$_{\\bar{\\nu}_e}$ $<$ 14.8 MeV. No candidates were found for an expected background of $1.1{\\pm}0.4$ events. This result can be used to obtain a limit on $\\bar{\\nu}_{e}$ fluxes of any origin. Assuming that all $\\bar{\\nu}_e$ flux has its origin in the Sun and has the characteristic $^8$B solar $\\nu_e$ energy spectrum, we obtain an upper limit of 3.7 \\times 10$^2$ cm$^{-2}$ s$^{-1}$ (90% C.L.) on the $\\bar{\\nu}_e$ flux. We interpret this limit, correspon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0310047","kind":"arxiv","version":3},"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"}