{"paper":{"title":"Observation of $B^+ \\to \\chi_{c0} K^+ $","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, K. Abe, The Belle Collaboration","submitted_at":"2001-07-20T09:11:50Z","abstract_excerpt":"We report the first observation of the decay $B^+ \\to \\chi_{c0} K^+$ using 21.3 fb$^{-1}$ of data collected by the Belle detector at the $\\Upsilon$(4S) resonance. The preliminary result for the branching fraction is ${\\cal{B}}(B^+\\to \\chi_{c0}K^+)=(8.0^{+2.7}_{-2.4}\\pm 1.0\\pm 1.1)\\times 10^{-4}$ where the first error is statistical, the second is systematic, and the third comes from the uncertainty in the $\\chi_{c0}\\to\\pi^+\\pi^-$ branching fraction."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0107050","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0107050/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}