{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:3V6CMUEWZ66VNI6ETCIDG2WLX2","short_pith_number":"pith:3V6CMUEW","schema_version":"1.0","canonical_sha256":"dd7c265096cfbd56a3c49890336acbbeb91077313b06b4b54159f552e0550278","source":{"kind":"arxiv","id":"hep-ex/0508018","version":1},"attestation_state":"computed","paper":{"title":"Measurement of Exclusive $B \\to X_u \\ell \\nu$ Decays with $D^{(*)} \\ell \\nu$ Decay Tagging","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. (for the Belle Collaboration), K. Abe","submitted_at":"2005-08-08T02:28:36Z","abstract_excerpt":"We report a measurement of the charmless semileptonic decays $B^0 \\to \\pi^- / \\rho^- \\ell^{+} \\nu$ and $B^+ \\to \\pi^0 / \\rho^0 \\ell^{+} \\nu$, based on 253 fb$^{-1}$ of data collected with the Belle detector at the KEKB $e^+e^-$ asymmetric collider. In this analysis, the accompanying $B$ meson is reconstructed in the semileptonic mode $B \\to D^{(*)} \\ell \\nu$, enabling detection of the signal modes with high purity. We measure the branching fractions ${\\cal B}(B^0 \\to \\pi^- \\ell^+ \\nu) = (1.48\\pm 0.20\\pm 0.16\\pm 0.04) \\times 10^{-4}$, ${\\cal B}(B^0 \\to \\rho^- \\ell^+ \\nu) = (2.07\\pm 0.47\\pm 0.25"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-ex/0508018","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2005-08-08T02:28:36Z","cross_cats_sorted":[],"title_canon_sha256":"6968d0821ca23cc3c7e7cfaa626ef4d836d256fbbd57f5017fe1dc7987fd10ca","abstract_canon_sha256":"91c47f36fc2fd17bcb1fa17d7a8db992d008e90366be614441114196f819a10a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:54:22.303950Z","signature_b64":"DRWgKlqMc08prZInFR61D7O/BMZooOv71mE7LK4GqGFb7JuO9F1qliP58LyKjS8XK2/uyQGM2A8jT5hWofhSCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd7c265096cfbd56a3c49890336acbbeb91077313b06b4b54159f552e0550278","last_reissued_at":"2026-07-04T23:54:22.303605Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:54:22.303605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of Exclusive $B \\to X_u \\ell \\nu$ Decays with $D^{(*)} \\ell \\nu$ Decay Tagging","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. (for the Belle Collaboration), K. Abe","submitted_at":"2005-08-08T02:28:36Z","abstract_excerpt":"We report a measurement of the charmless semileptonic decays $B^0 \\to \\pi^- / \\rho^- \\ell^{+} \\nu$ and $B^+ \\to \\pi^0 / \\rho^0 \\ell^{+} \\nu$, based on 253 fb$^{-1}$ of data collected with the Belle detector at the KEKB $e^+e^-$ asymmetric collider. In this analysis, the accompanying $B$ meson is reconstructed in the semileptonic mode $B \\to D^{(*)} \\ell \\nu$, enabling detection of the signal modes with high purity. We measure the branching fractions ${\\cal B}(B^0 \\to \\pi^- \\ell^+ \\nu) = (1.48\\pm 0.20\\pm 0.16\\pm 0.04) \\times 10^{-4}$, ${\\cal B}(B^0 \\to \\rho^- \\ell^+ \\nu) = (2.07\\pm 0.47\\pm 0.25"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0508018","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/0508018/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0508018","created_at":"2026-07-04T23:54:22.303662+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0508018v1","created_at":"2026-07-04T23:54:22.303662+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0508018","created_at":"2026-07-04T23:54:22.303662+00:00"},{"alias_kind":"pith_short_12","alias_value":"3V6CMUEWZ66V","created_at":"2026-07-04T23:54:22.303662+00:00"},{"alias_kind":"pith_short_16","alias_value":"3V6CMUEWZ66VNI6E","created_at":"2026-07-04T23:54:22.303662+00:00"},{"alias_kind":"pith_short_8","alias_value":"3V6CMUEW","created_at":"2026-07-04T23:54:22.303662+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2","json":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2.json","graph_json":"https://pith.science/api/pith-number/3V6CMUEWZ66VNI6ETCIDG2WLX2/graph.json","events_json":"https://pith.science/api/pith-number/3V6CMUEWZ66VNI6ETCIDG2WLX2/events.json","paper":"https://pith.science/paper/3V6CMUEW"},"agent_actions":{"view_html":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2","download_json":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2.json","view_paper":"https://pith.science/paper/3V6CMUEW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ex/0508018&json=true","fetch_graph":"https://pith.science/api/pith-number/3V6CMUEWZ66VNI6ETCIDG2WLX2/graph.json","fetch_events":"https://pith.science/api/pith-number/3V6CMUEWZ66VNI6ETCIDG2WLX2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2/action/storage_attestation","attest_author":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2/action/author_attestation","sign_citation":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2/action/citation_signature","submit_replication":"https://pith.science/pith/3V6CMUEWZ66VNI6ETCIDG2WLX2/action/replication_record"}},"created_at":"2026-07-04T23:54:22.303662+00:00","updated_at":"2026-07-04T23:54:22.303662+00:00"}