{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:TL2ELCE33TMINVH2OVY7LZYEBG","short_pith_number":"pith:TL2ELCE3","schema_version":"1.0","canonical_sha256":"9af445889bdcd886d4fa7571f5e70409a240c4ad67ee798abba223e513c03972","source":{"kind":"arxiv","id":"1808.05932","version":3},"attestation_state":"computed","paper":{"title":"Model-Independent Determination of $B_c^+ \\to \\eta_c\\, \\ell^+\\, \\nu$ Form Factors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Amarjit Soni, Christopher W. Murphy","submitted_at":"2018-08-17T17:16:25Z","abstract_excerpt":"We derive model-independent bounds on the form factors for the decay $B_c^+ \\to \\eta_c\\, \\ell^+\\, \\nu$ including full mass effects, i.e. $\\ell = e,\\, \\mu, \\text{ and } \\tau$. The bounds are obtained by using the BGL parameterization for the form factors, and fitting to the preliminary lattice data of the HPQCD Collaboration. Our main result after bounding the form factors is the Standard Model (SM) prediction for the ratio of branching fractions $R(\\eta_c) = \\mathcal{B}(B_c^+ \\to \\eta_c\\, \\tau^+\\, \\nu_{\\tau}) / \\mathcal{B}(B_c^+ \\to \\eta_c\\, \\mu^+\\, \\nu_{\\mu})$. We find $R(\\eta_c)|_{\\text{SM}}"},"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":"1808.05932","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-08-17T17:16:25Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"965a3a75b3d04ea7f8ece52535f767682d14b8982bd550fdce9933a5fc525fc5","abstract_canon_sha256":"5929abaf40b0968f5d59988bdf9be3fa34e3c9d125a4542b840167724ee765b6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:05.733615Z","signature_b64":"BWG6TpSkfb+vySkOafBCcXTHlP3uXDcdbPYq/J/bs6r7tYkVL6m29Epafi5/0qd2cgf1bBUr2UpIg/ZTe0rECw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9af445889bdcd886d4fa7571f5e70409a240c4ad67ee798abba223e513c03972","last_reissued_at":"2026-05-17T23:59:05.733053Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:05.733053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Model-Independent Determination of $B_c^+ \\to \\eta_c\\, \\ell^+\\, \\nu$ Form Factors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Amarjit Soni, Christopher W. Murphy","submitted_at":"2018-08-17T17:16:25Z","abstract_excerpt":"We derive model-independent bounds on the form factors for the decay $B_c^+ \\to \\eta_c\\, \\ell^+\\, \\nu$ including full mass effects, i.e. $\\ell = e,\\, \\mu, \\text{ and } \\tau$. The bounds are obtained by using the BGL parameterization for the form factors, and fitting to the preliminary lattice data of the HPQCD Collaboration. Our main result after bounding the form factors is the Standard Model (SM) prediction for the ratio of branching fractions $R(\\eta_c) = \\mathcal{B}(B_c^+ \\to \\eta_c\\, \\tau^+\\, \\nu_{\\tau}) / \\mathcal{B}(B_c^+ \\to \\eta_c\\, \\mu^+\\, \\nu_{\\mu})$. We find $R(\\eta_c)|_{\\text{SM}}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.05932","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":""},"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":"1808.05932","created_at":"2026-05-17T23:59:05.733117+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.05932v3","created_at":"2026-05-17T23:59:05.733117+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.05932","created_at":"2026-05-17T23:59:05.733117+00:00"},{"alias_kind":"pith_short_12","alias_value":"TL2ELCE33TMI","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"TL2ELCE33TMINVH2","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"TL2ELCE3","created_at":"2026-05-18T12:32:53.628368+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/TL2ELCE33TMINVH2OVY7LZYEBG","json":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG.json","graph_json":"https://pith.science/api/pith-number/TL2ELCE33TMINVH2OVY7LZYEBG/graph.json","events_json":"https://pith.science/api/pith-number/TL2ELCE33TMINVH2OVY7LZYEBG/events.json","paper":"https://pith.science/paper/TL2ELCE3"},"agent_actions":{"view_html":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG","download_json":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG.json","view_paper":"https://pith.science/paper/TL2ELCE3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.05932&json=true","fetch_graph":"https://pith.science/api/pith-number/TL2ELCE33TMINVH2OVY7LZYEBG/graph.json","fetch_events":"https://pith.science/api/pith-number/TL2ELCE33TMINVH2OVY7LZYEBG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG/action/storage_attestation","attest_author":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG/action/author_attestation","sign_citation":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG/action/citation_signature","submit_replication":"https://pith.science/pith/TL2ELCE33TMINVH2OVY7LZYEBG/action/replication_record"}},"created_at":"2026-05-17T23:59:05.733117+00:00","updated_at":"2026-05-17T23:59:05.733117+00:00"}