{"paper":{"title":"Measurement of the inclusive semileptonic branching fraction of B mesons and |Vcb|","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"The Belle Collaboration","submitted_at":"2002-08-20T14:04:28Z","abstract_excerpt":"We present a measurement of the electron spectrum from inclusive semileptonic {\\it B} decay, using 5.1 fb$^{-1}$ of $\\Upsilon(4S)$ data collected with the Belle detector. A high-momentum lepton tag was used to separate the semileptonic {\\it B} decay electrons from secondary decay electrons. We obtained the branching fraction, ${\\cal B}(B\\to X e^+ \\nu) = (10.90 \\pm 0.12 \\pm 0.49)%$, with minimal model dependence.\n  From this measurement, we derive a value for the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cb}| = 0.0408 \\pm 0.0010 {\\rm (exp)} \\pm 0.0025{\\rm (th)}$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0208033","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":""},"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"}