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Louvot","submitted_at":"2008-09-15T14:23:48Z","abstract_excerpt":"We have studied Bs0 -> Ds- pi+ and Bs0 -> Ds^(-/+) K^(+/-) decays using 23.6 /fb of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e+e- collider.\n  This highly pure Bs0 -> Ds- pi+ sample is used to measure the branching fraction, BR(Bs0 -> Ds- pi+)=[3.67 +0.35,-0.33}(stat.) +0.43,-0.42(syst.) +-0.49(f_s)] x 10^{-3} (f_s=N(Bs(*) Bs(*)bar)/N(b\\bar b)) and the fractions of Bs0 event types at the Upsilon(5S) energy, {in particular N(Bs* Bs*bar}/N(N(Bs(*) Bs(*)bar)=(90.1 +3.8,-4.0 +-0.2)%. We also determine the masses M(Bs0)=(5364.4 +-1.3 +-0.7) MeV/c^2 and M(Bs*)=("},"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":"0809.2526","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2008-09-15T14:23:48Z","cross_cats_sorted":[],"title_canon_sha256":"bf0dc6a68ad5da529b253a9f702e45c69426bf96df93198a2ef937cd95fc0627","abstract_canon_sha256":"1bd9daa7257af4e5279c70c453da42c9b2d742b1bdc228e508460d92a3515f23"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:53:07.715379Z","signature_b64":"Jb/9urK32xPn2Q22HvBSAD/bWAH8QYAMO7x4owCA6838jFgXF9tQNy3tDJEBYLUXCsBBUDDIul3Bzpmc7xGTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ab0143e43d500e1ce9d815d217aabef1c9820abf8d79ff9d768ce85a9019554","last_reissued_at":"2026-07-04T15:53:07.714980Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:53:07.714980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of the Decay B_s^0 -> D_s^- pi^+ and Evidence for B_s^0 -> D_s^{+/-} K^{-/+} in e+e- Annihilation at sqrt(s)~10.87 GeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, J. Wicht, O. Schneider, The Belle Collaboration: R. Louvot","submitted_at":"2008-09-15T14:23:48Z","abstract_excerpt":"We have studied Bs0 -> Ds- pi+ and Bs0 -> Ds^(-/+) K^(+/-) decays using 23.6 /fb of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e+e- collider.\n  This highly pure Bs0 -> Ds- pi+ sample is used to measure the branching fraction, BR(Bs0 -> Ds- pi+)=[3.67 +0.35,-0.33}(stat.) +0.43,-0.42(syst.) +-0.49(f_s)] x 10^{-3} (f_s=N(Bs(*) Bs(*)bar)/N(b\\bar b)) and the fractions of Bs0 event types at the Upsilon(5S) energy, {in particular N(Bs* Bs*bar}/N(N(Bs(*) Bs(*)bar)=(90.1 +3.8,-4.0 +-0.2)%. We also determine the masses M(Bs0)=(5364.4 +-1.3 +-0.7) MeV/c^2 and M(Bs*)=("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.2526","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0809.2526/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":"0809.2526","created_at":"2026-07-04T15:53:07.715036+00:00"},{"alias_kind":"arxiv_version","alias_value":"0809.2526v2","created_at":"2026-07-04T15:53:07.715036+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.2526","created_at":"2026-07-04T15:53:07.715036+00:00"},{"alias_kind":"pith_short_12","alias_value":"TKYBIPSD2UAO","created_at":"2026-07-04T15:53:07.715036+00:00"},{"alias_kind":"pith_short_16","alias_value":"TKYBIPSD2UAODTU5","created_at":"2026-07-04T15:53:07.715036+00:00"},{"alias_kind":"pith_short_8","alias_value":"TKYBIPSD","created_at":"2026-07-04T15:53:07.715036+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2507.12513","citing_title":"Quantum Tomography in Neutral Meson and Antimeson Systems","ref_index":65,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54","json":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54.json","graph_json":"https://pith.science/api/pith-number/TKYBIPSD2UAODTU5QFOSC6VL54/graph.json","events_json":"https://pith.science/api/pith-number/TKYBIPSD2UAODTU5QFOSC6VL54/events.json","paper":"https://pith.science/paper/TKYBIPSD"},"agent_actions":{"view_html":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54","download_json":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54.json","view_paper":"https://pith.science/paper/TKYBIPSD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0809.2526&json=true","fetch_graph":"https://pith.science/api/pith-number/TKYBIPSD2UAODTU5QFOSC6VL54/graph.json","fetch_events":"https://pith.science/api/pith-number/TKYBIPSD2UAODTU5QFOSC6VL54/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54/action/storage_attestation","attest_author":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54/action/author_attestation","sign_citation":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54/action/citation_signature","submit_replication":"https://pith.science/pith/TKYBIPSD2UAODTU5QFOSC6VL54/action/replication_record"}},"created_at":"2026-07-04T15:53:07.715036+00:00","updated_at":"2026-07-04T15:53:07.715036+00:00"}