{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1996:JC7NT5MERBRJXGFGWCBTSB6W5D","short_pith_number":"pith:JC7NT5ME","schema_version":"1.0","canonical_sha256":"48bed9f58488629b98a6b0833907d6e8cb5b2131f5213923b3937c57061d57f7","source":{"kind":"arxiv","id":"hep-ph/9603408","version":1},"attestation_state":"computed","paper":{"title":"Transition Form Factor gamma gamma* -> pi0 and QCD sum rules","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.V. Radyushkin, R.T.Ruskov","submitted_at":"1996-03-26T04:19:42Z","abstract_excerpt":"The transition gamma*(q_1)gamma*(q_2) -> \\pi0(p) is studied within the QCD sum rule framework. As a first step, we analyze the kinematic situation when both photon virtualities are spacelike and large. We construct a QCD sum rule for F(q_1^2,q_2^2) and show that, in the asymptotic limit |q_1^2|, |q_2^2| \\to \\infty, it reproduces the leading-order pQCD result. Then we study the limit |q_1^2| -> 0, in which one of the photons is (almost) real. We develop a factorization procedure for the infrared singularities ln(q_1^2), 1/q_1^2,1/q_1^4,etc., emerging in this limit. The infrared-sensitive contri"},"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":"hep-ph/9603408","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1996-03-26T04:19:42Z","cross_cats_sorted":[],"title_canon_sha256":"cb1103f5f2ad733bebfb8faf4b4d19b698dc1d47c2e2dd548d8dc04399b989cd","abstract_canon_sha256":"2d56993b1506c02a4ee27aa25990789a28307db28ebeac425be566828e5c92fb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:37.587826Z","signature_b64":"C6Fukza4ol4ojTQTDq6QgY7PkQyK58M75MXX/VHMJXRYQ4Z0DQd9XPjEytSUE7RV3HgG5/bafO5FHufXxTXqAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48bed9f58488629b98a6b0833907d6e8cb5b2131f5213923b3937c57061d57f7","last_reissued_at":"2026-05-18T04:28:37.587425Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:37.587425Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Transition Form Factor gamma gamma* -> pi0 and QCD sum rules","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.V. Radyushkin, R.T.Ruskov","submitted_at":"1996-03-26T04:19:42Z","abstract_excerpt":"The transition gamma*(q_1)gamma*(q_2) -> \\pi0(p) is studied within the QCD sum rule framework. As a first step, we analyze the kinematic situation when both photon virtualities are spacelike and large. We construct a QCD sum rule for F(q_1^2,q_2^2) and show that, in the asymptotic limit |q_1^2|, |q_2^2| \\to \\infty, it reproduces the leading-order pQCD result. Then we study the limit |q_1^2| -> 0, in which one of the photons is (almost) real. We develop a factorization procedure for the infrared singularities ln(q_1^2), 1/q_1^2,1/q_1^4,etc., emerging in this limit. The infrared-sensitive contri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9603408","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":"hep-ph/9603408","created_at":"2026-05-18T04:28:37.587481+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9603408v1","created_at":"2026-05-18T04:28:37.587481+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9603408","created_at":"2026-05-18T04:28:37.587481+00:00"},{"alias_kind":"pith_short_12","alias_value":"JC7NT5MERBRJ","created_at":"2026-05-18T12:25:47.700082+00:00"},{"alias_kind":"pith_short_16","alias_value":"JC7NT5MERBRJXGFG","created_at":"2026-05-18T12:25:47.700082+00:00"},{"alias_kind":"pith_short_8","alias_value":"JC7NT5ME","created_at":"2026-05-18T12:25:47.700082+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/JC7NT5MERBRJXGFGWCBTSB6W5D","json":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D.json","graph_json":"https://pith.science/api/pith-number/JC7NT5MERBRJXGFGWCBTSB6W5D/graph.json","events_json":"https://pith.science/api/pith-number/JC7NT5MERBRJXGFGWCBTSB6W5D/events.json","paper":"https://pith.science/paper/JC7NT5ME"},"agent_actions":{"view_html":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D","download_json":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D.json","view_paper":"https://pith.science/paper/JC7NT5ME","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9603408&json=true","fetch_graph":"https://pith.science/api/pith-number/JC7NT5MERBRJXGFGWCBTSB6W5D/graph.json","fetch_events":"https://pith.science/api/pith-number/JC7NT5MERBRJXGFGWCBTSB6W5D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D/action/storage_attestation","attest_author":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D/action/author_attestation","sign_citation":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D/action/citation_signature","submit_replication":"https://pith.science/pith/JC7NT5MERBRJXGFGWCBTSB6W5D/action/replication_record"}},"created_at":"2026-05-18T04:28:37.587481+00:00","updated_at":"2026-05-18T04:28:37.587481+00:00"}