{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:T6ZOT3U4LS4R24NR3ZX2DBFG3B","short_pith_number":"pith:T6ZOT3U4","schema_version":"1.0","canonical_sha256":"9fb2e9ee9c5cb91d71b1de6fa184a6d8448c78f037b8fee5ff6608dd91a0f07d","source":{"kind":"arxiv","id":"1411.1642","version":1},"attestation_state":"computed","paper":{"title":"New Physics Scenarios in $b \\to c \\ell {\\bar \\nu}_\\ell$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Fulvia De Fazio","submitted_at":"2014-11-06T15:56:53Z","abstract_excerpt":"The latest BaBar measurements of the ratios ${\\cal R}(D^{(*)})=\\displaystyle{\\frac{{\\cal B}(B \\to D^{(*)} \\tau {\\bar \\nu}_\\tau)}{{\\cal B}(B \\to D^{(*)} \\mu {\\bar \\nu}_\\mu)}}$ deviate from the Standard Model predictions at the global level of 3.4$\\sigma$. A possibility to reproduce these experimental ratios without affecting other modes which do not show similar deviations is to consider new physics scenarios producing an additional tensor operator in the effective weak Hamiltonian. I describe the impact of such an operator in semileptonic $B \\to D^{(*)}$ modes and in semileptonic $B$ and $B_s$"},"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":"1411.1642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-11-06T15:56:53Z","cross_cats_sorted":[],"title_canon_sha256":"eae2d04dd84af8ed3b72d0808b27ed7b8fd6a565c7c1c3c1132ef5d296123833","abstract_canon_sha256":"715250a7889d1f390fc359875698bf37456cd0c6f08856363e38e5ffa097cd47"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:38:27.298789Z","signature_b64":"S0FbrL1IwY6j+mhDhXAuOb9tBfP3smGRHsV08zJwJu5v8zaqlfLdvrKNpYt/dawauJpFHlC2OfheGZ6AvduABQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fb2e9ee9c5cb91d71b1de6fa184a6d8448c78f037b8fee5ff6608dd91a0f07d","last_reissued_at":"2026-05-18T02:38:27.298068Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:38:27.298068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New Physics Scenarios in $b \\to c \\ell {\\bar \\nu}_\\ell$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Fulvia De Fazio","submitted_at":"2014-11-06T15:56:53Z","abstract_excerpt":"The latest BaBar measurements of the ratios ${\\cal R}(D^{(*)})=\\displaystyle{\\frac{{\\cal B}(B \\to D^{(*)} \\tau {\\bar \\nu}_\\tau)}{{\\cal B}(B \\to D^{(*)} \\mu {\\bar \\nu}_\\mu)}}$ deviate from the Standard Model predictions at the global level of 3.4$\\sigma$. A possibility to reproduce these experimental ratios without affecting other modes which do not show similar deviations is to consider new physics scenarios producing an additional tensor operator in the effective weak Hamiltonian. I describe the impact of such an operator in semileptonic $B \\to D^{(*)}$ modes and in semileptonic $B$ and $B_s$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.1642","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1411.1642","created_at":"2026-05-18T02:38:27.298192+00:00"},{"alias_kind":"arxiv_version","alias_value":"1411.1642v1","created_at":"2026-05-18T02:38:27.298192+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.1642","created_at":"2026-05-18T02:38:27.298192+00:00"},{"alias_kind":"pith_short_12","alias_value":"T6ZOT3U4LS4R","created_at":"2026-05-18T12:28:49.207871+00:00"},{"alias_kind":"pith_short_16","alias_value":"T6ZOT3U4LS4R24NR","created_at":"2026-05-18T12:28:49.207871+00:00"},{"alias_kind":"pith_short_8","alias_value":"T6ZOT3U4","created_at":"2026-05-18T12:28:49.207871+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/T6ZOT3U4LS4R24NR3ZX2DBFG3B","json":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B.json","graph_json":"https://pith.science/api/pith-number/T6ZOT3U4LS4R24NR3ZX2DBFG3B/graph.json","events_json":"https://pith.science/api/pith-number/T6ZOT3U4LS4R24NR3ZX2DBFG3B/events.json","paper":"https://pith.science/paper/T6ZOT3U4"},"agent_actions":{"view_html":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B","download_json":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B.json","view_paper":"https://pith.science/paper/T6ZOT3U4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1411.1642&json=true","fetch_graph":"https://pith.science/api/pith-number/T6ZOT3U4LS4R24NR3ZX2DBFG3B/graph.json","fetch_events":"https://pith.science/api/pith-number/T6ZOT3U4LS4R24NR3ZX2DBFG3B/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B/action/storage_attestation","attest_author":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B/action/author_attestation","sign_citation":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B/action/citation_signature","submit_replication":"https://pith.science/pith/T6ZOT3U4LS4R24NR3ZX2DBFG3B/action/replication_record"}},"created_at":"2026-05-18T02:38:27.298192+00:00","updated_at":"2026-05-18T02:38:27.298192+00:00"}