{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:P4VJYKAZVCHZNEVQHMY2KSYIFF","short_pith_number":"pith:P4VJYKAZ","schema_version":"1.0","canonical_sha256":"7f2a9c2819a88f9692b03b31a54b0829797560d1760fba4da612356e22a42b32","source":{"kind":"arxiv","id":"hep-ph/9704420","version":1},"attestation_state":"computed","paper":{"title":"Off-diagonal Helicity Density Matrix Elements for Vector Mesons Produced at LEP","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"2), (2) IPN, (3) INFN, 4) ((1) University, (4) CBPF, Brazil), Cagliari, France, Francesco Murgia (3), INFN, Italy, Lyon, Marc Bertini (1, Mauro Anselmino (1), Paulo Quintairos (1, Rio de Janeiro, Torino","submitted_at":"1997-04-28T15:58:57Z","abstract_excerpt":"Final state quark-antiquark interactions may give origin to non zero values of the off-diagonal element rho_{1,-1} of the helicity density matrix of vector mesons produced in e+e- annihilations, as confirmed by recent OPAL data on phi and D^*'s. Predictions are given for rho_{1,-1} of several mesons produced at large z and small p_T, i.e. collinear with the parent jet; the values obtained for phi and D^* are in agreement with data."},"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/9704420","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1997-04-28T15:58:57Z","cross_cats_sorted":[],"title_canon_sha256":"3bbb38da26b7475009af2a2a82467da83f85a0aa9468639dfb96901213e1d9b2","abstract_canon_sha256":"bbb862a82ddc5d9f7754539f26cb918d7d1293bfca7cded6293fa5dde341da2a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:13:25.372210Z","signature_b64":"VW4VKHhDplDMv/YLmgiPm2hx6n76oMr447jhdtuws9ppAFUamfLYRk/81Fj9oEIZeisx9xr8uk9MEJLElLEBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f2a9c2819a88f9692b03b31a54b0829797560d1760fba4da612356e22a42b32","last_reissued_at":"2026-05-18T04:13:25.371812Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:13:25.371812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Off-diagonal Helicity Density Matrix Elements for Vector Mesons Produced at LEP","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"2), (2) IPN, (3) INFN, 4) ((1) University, (4) CBPF, Brazil), Cagliari, France, Francesco Murgia (3), INFN, Italy, Lyon, Marc Bertini (1, Mauro Anselmino (1), Paulo Quintairos (1, Rio de Janeiro, Torino","submitted_at":"1997-04-28T15:58:57Z","abstract_excerpt":"Final state quark-antiquark interactions may give origin to non zero values of the off-diagonal element rho_{1,-1} of the helicity density matrix of vector mesons produced in e+e- annihilations, as confirmed by recent OPAL data on phi and D^*'s. Predictions are given for rho_{1,-1} of several mesons produced at large z and small p_T, i.e. collinear with the parent jet; the values obtained for phi and D^* are in agreement with data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9704420","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/9704420","created_at":"2026-05-18T04:13:25.371869+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9704420v1","created_at":"2026-05-18T04:13:25.371869+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9704420","created_at":"2026-05-18T04:13:25.371869+00:00"},{"alias_kind":"pith_short_12","alias_value":"P4VJYKAZVCHZ","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_16","alias_value":"P4VJYKAZVCHZNEVQ","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_8","alias_value":"P4VJYKAZ","created_at":"2026-05-18T12:25:48.327863+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/P4VJYKAZVCHZNEVQHMY2KSYIFF","json":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF.json","graph_json":"https://pith.science/api/pith-number/P4VJYKAZVCHZNEVQHMY2KSYIFF/graph.json","events_json":"https://pith.science/api/pith-number/P4VJYKAZVCHZNEVQHMY2KSYIFF/events.json","paper":"https://pith.science/paper/P4VJYKAZ"},"agent_actions":{"view_html":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF","download_json":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF.json","view_paper":"https://pith.science/paper/P4VJYKAZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9704420&json=true","fetch_graph":"https://pith.science/api/pith-number/P4VJYKAZVCHZNEVQHMY2KSYIFF/graph.json","fetch_events":"https://pith.science/api/pith-number/P4VJYKAZVCHZNEVQHMY2KSYIFF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF/action/storage_attestation","attest_author":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF/action/author_attestation","sign_citation":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF/action/citation_signature","submit_replication":"https://pith.science/pith/P4VJYKAZVCHZNEVQHMY2KSYIFF/action/replication_record"}},"created_at":"2026-05-18T04:13:25.371869+00:00","updated_at":"2026-05-18T04:13:25.371869+00:00"}