{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:QXXZXXLPF3V3OLO6PGRNOTYEZH","short_pith_number":"pith:QXXZXXLP","schema_version":"1.0","canonical_sha256":"85ef9bdd6f2eebb72dde79a2d74f04c9f74e2e3c14fdac7ff8271b81e69cd31f","source":{"kind":"arxiv","id":"0907.2842","version":1},"attestation_state":"computed","paper":{"title":"Semileptonic charm decays $D \\to \\pi l \\nu_{\\l}$ and $D \\to K l \\nu_l$ from QCD Light-Cone Sum Rules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A.Khodjamirian, Ch.Klein, N.Offen, Th.Mannel","submitted_at":"2009-07-16T13:51:39Z","abstract_excerpt":"We present a new calculation of the $D\\to\\pi$ and $D \\to K$ form factors from QCD light-cone sum rules. The $\\overline{MS}$ scheme for the $c$-quark mass is used and the input parameters are updated. The results are $f^+_{D\\pi}(0)= 0.67^{+0.10}_{-0.07}$, $f^+_{DK}(0)=0.75^{+0.11}_{-0.08}$ and $f^+_{D\\pi}(0)/f^+_{DK}(0)=0.88 \\pm 0.05$. Combining the calculated form factors with the latest CLEO data, we obtain $|V_{cd}|=0.225\\pm 0.005 \\pm 0.003 ^{+0.016}_{-0.012}$ and $|V_{cd}|/|V_{cs}|= 0.236\\pm 0.006\\pm 0.003\\pm 0.013$ where the first and second errors are of experimental origin and the third "},"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":"0907.2842","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-16T13:51:39Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"5555e745369b4756785d0ea1e5ac67d8b6878842faa1b20e964594cbe7a59608","abstract_canon_sha256":"5848f5f5c479e16c23024deff19585f965812bb2b05899da5aec54c256452a5f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:23:58.803361Z","signature_b64":"8qERd82GpepgevhBYlfRJggQvby5Q6anProZnUPQkN01qrFei2oYAEtIVlvlQ2S2GKHiLTGv6zCGkVg71zJxCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85ef9bdd6f2eebb72dde79a2d74f04c9f74e2e3c14fdac7ff8271b81e69cd31f","last_reissued_at":"2026-05-18T03:23:58.802849Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:23:58.802849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Semileptonic charm decays $D \\to \\pi l \\nu_{\\l}$ and $D \\to K l \\nu_l$ from QCD Light-Cone Sum Rules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A.Khodjamirian, Ch.Klein, N.Offen, Th.Mannel","submitted_at":"2009-07-16T13:51:39Z","abstract_excerpt":"We present a new calculation of the $D\\to\\pi$ and $D \\to K$ form factors from QCD light-cone sum rules. The $\\overline{MS}$ scheme for the $c$-quark mass is used and the input parameters are updated. The results are $f^+_{D\\pi}(0)= 0.67^{+0.10}_{-0.07}$, $f^+_{DK}(0)=0.75^{+0.11}_{-0.08}$ and $f^+_{D\\pi}(0)/f^+_{DK}(0)=0.88 \\pm 0.05$. Combining the calculated form factors with the latest CLEO data, we obtain $|V_{cd}|=0.225\\pm 0.005 \\pm 0.003 ^{+0.016}_{-0.012}$ and $|V_{cd}|/|V_{cs}|= 0.236\\pm 0.006\\pm 0.003\\pm 0.013$ where the first and second errors are of experimental origin and the third "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.2842","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":"0907.2842","created_at":"2026-05-18T03:23:58.802939+00:00"},{"alias_kind":"arxiv_version","alias_value":"0907.2842v1","created_at":"2026-05-18T03:23:58.802939+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.2842","created_at":"2026-05-18T03:23:58.802939+00:00"},{"alias_kind":"pith_short_12","alias_value":"QXXZXXLPF3V3","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"QXXZXXLPF3V3OLO6","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"QXXZXXLP","created_at":"2026-05-18T12:26:01.383474+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/QXXZXXLPF3V3OLO6PGRNOTYEZH","json":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH.json","graph_json":"https://pith.science/api/pith-number/QXXZXXLPF3V3OLO6PGRNOTYEZH/graph.json","events_json":"https://pith.science/api/pith-number/QXXZXXLPF3V3OLO6PGRNOTYEZH/events.json","paper":"https://pith.science/paper/QXXZXXLP"},"agent_actions":{"view_html":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH","download_json":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH.json","view_paper":"https://pith.science/paper/QXXZXXLP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0907.2842&json=true","fetch_graph":"https://pith.science/api/pith-number/QXXZXXLPF3V3OLO6PGRNOTYEZH/graph.json","fetch_events":"https://pith.science/api/pith-number/QXXZXXLPF3V3OLO6PGRNOTYEZH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH/action/storage_attestation","attest_author":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH/action/author_attestation","sign_citation":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH/action/citation_signature","submit_replication":"https://pith.science/pith/QXXZXXLPF3V3OLO6PGRNOTYEZH/action/replication_record"}},"created_at":"2026-05-18T03:23:58.802939+00:00","updated_at":"2026-05-18T03:23:58.802939+00:00"}