{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:5CY3WCI3VQOXL37XGHEF3OK6YR","short_pith_number":"pith:5CY3WCI3","schema_version":"1.0","canonical_sha256":"e8b1bb091bac1d75eff731c85db95ec456ffe2f53a8bdf47e8016dfb9cd17e75","source":{"kind":"arxiv","id":"2105.08674","version":3},"attestation_state":"computed","paper":{"title":"$\\vert V_{cb} \\vert$ and $R(D^{(*)})$ using lattice QCD and unitarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat"],"primary_cat":"hep-ph","authors_text":"G. Martinelli, L. Vittorio, S. Simula","submitted_at":"2021-05-18T17:05:15Z","abstract_excerpt":"The Cabibbo-Kobayashi-Maskawa (CKM) matrix element $|V_{cb}|$ is extracted from exclusive semileptonic $B \\to D^{(*)}$ decays adopting a novel unitarity-based approach which allows to determine in a full non-perturbative way the relevant hadronic form factors (FFs) in the whole kinematical range. By using existing lattice computations of the $B \\to D^{(*)}$ FFs at small recoil from FNAL/MILC and JLQCD Collaborations, we show that it is possible to extrapolate their behavior also at large recoil without assuming any specific momentum dependence and without constraining their shape using experim"},"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":"2105.08674","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-05-18T17:05:15Z","cross_cats_sorted":["hep-ex","hep-lat"],"title_canon_sha256":"57a7d47be876f261fc8b047a6e067365f7d35afa8519f81c8b426d9fa37ab0dc","abstract_canon_sha256":"875c54b622144b0866301d85cddedb5f6fa27a6388b1ce4741ab5395d124055f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:57:08.568058Z","signature_b64":"HgbOjHF6co4VEgozHgv3gtavcOqMIIXf8shOkfGWvqeui/2K41todtjyeUWZ4BmYqoJp1bKl7xpVOChC/+oDAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e8b1bb091bac1d75eff731c85db95ec456ffe2f53a8bdf47e8016dfb9cd17e75","last_reissued_at":"2026-07-05T03:57:08.567628Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:57:08.567628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"$\\vert V_{cb} \\vert$ and $R(D^{(*)})$ using lattice QCD and unitarity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat"],"primary_cat":"hep-ph","authors_text":"G. Martinelli, L. Vittorio, S. Simula","submitted_at":"2021-05-18T17:05:15Z","abstract_excerpt":"The Cabibbo-Kobayashi-Maskawa (CKM) matrix element $|V_{cb}|$ is extracted from exclusive semileptonic $B \\to D^{(*)}$ decays adopting a novel unitarity-based approach which allows to determine in a full non-perturbative way the relevant hadronic form factors (FFs) in the whole kinematical range. By using existing lattice computations of the $B \\to D^{(*)}$ FFs at small recoil from FNAL/MILC and JLQCD Collaborations, we show that it is possible to extrapolate their behavior also at large recoil without assuming any specific momentum dependence and without constraining their shape using experim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.08674","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.08674/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":"2105.08674","created_at":"2026-07-05T03:57:08.567683+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.08674v3","created_at":"2026-07-05T03:57:08.567683+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.08674","created_at":"2026-07-05T03:57:08.567683+00:00"},{"alias_kind":"pith_short_12","alias_value":"5CY3WCI3VQOX","created_at":"2026-07-05T03:57:08.567683+00:00"},{"alias_kind":"pith_short_16","alias_value":"5CY3WCI3VQOXL37X","created_at":"2026-07-05T03:57:08.567683+00:00"},{"alias_kind":"pith_short_8","alias_value":"5CY3WCI3","created_at":"2026-07-05T03:57:08.567683+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.23410","citing_title":"Angular Analysis of $B \\to D^{*}\\ell \\bar{\\nu}_{\\ell}$ from Lattice and Experiment: $|V_{cb}|$ and New Physics Constraints","ref_index":27,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR","json":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR.json","graph_json":"https://pith.science/api/pith-number/5CY3WCI3VQOXL37XGHEF3OK6YR/graph.json","events_json":"https://pith.science/api/pith-number/5CY3WCI3VQOXL37XGHEF3OK6YR/events.json","paper":"https://pith.science/paper/5CY3WCI3"},"agent_actions":{"view_html":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR","download_json":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR.json","view_paper":"https://pith.science/paper/5CY3WCI3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.08674&json=true","fetch_graph":"https://pith.science/api/pith-number/5CY3WCI3VQOXL37XGHEF3OK6YR/graph.json","fetch_events":"https://pith.science/api/pith-number/5CY3WCI3VQOXL37XGHEF3OK6YR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR/action/storage_attestation","attest_author":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR/action/author_attestation","sign_citation":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR/action/citation_signature","submit_replication":"https://pith.science/pith/5CY3WCI3VQOXL37XGHEF3OK6YR/action/replication_record"}},"created_at":"2026-07-05T03:57:08.567683+00:00","updated_at":"2026-07-05T03:57:08.567683+00:00"}