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Fang","submitted_at":"2014-10-13T09:25:05Z","abstract_excerpt":"By globally analyzing all existing measured branching fractions for $D\\to \\pi e^+\\nu_e$ decays, partial decay rates in different four momentum transfer-squared $q^2$ bins, as well as products of the decay form factor $f_+^\\pi(q^2)$ and the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix element $|V_{cd}|$, we obtain $f_+^\\pi(0)|V_{cd}|=0.1428\\pm0.0019$. This product, in conjunction with $|V_{cd}|$ from a global Standard Model fit, implies a value for the $D\\to\\pi$ semileptonic form factor $f_+^\\pi(0)=0.634\\pm0.008\\pm0.002$, which is consistent within error with those calculated in theory b"},"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":"1410.3232","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2014-10-13T09:25:05Z","cross_cats_sorted":[],"title_canon_sha256":"2b73d22183f13a64e946125bb70c61458582ee972b20de9cda2eca5cd060a1e2","abstract_canon_sha256":"b3ecc914430f25cdafde35bb636a36655698672908302ff6f20ca54eccc448c0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:48.954090Z","signature_b64":"h+4pGEbueD15Df5V08TMJSMiBZZfm3zbaDHhI2sT5NTH5sQgLF5uBZYlztKGgARelxGIO2+X7WPf/XiO3pNVDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3318db66a0ae7e21f1235aa06d6dd45cf197a4647d6b605aeee42c91dfa48d09","last_reissued_at":"2026-05-18T01:41:48.953579Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:48.953579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Determination of $f_+^\\pi(0)$ and Extraction of $|V_{cd}|$ from Semileptonic $D$ Decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"G. 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