{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:Q66P24NT3VCW2TNQAD6LQJUO4T","short_pith_number":"pith:Q66P24NT","schema_version":"1.0","canonical_sha256":"87bcfd71b3dd456d4db000fcb8268ee4e1aa0ee283cedc7893dec59d9176e8d5","source":{"kind":"arxiv","id":"hep-ex/9704013","version":2},"attestation_state":"computed","paper":{"title":"Measurement of Elastic $J/\\psi$ Photoproduction at HERA","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"ZEUS Collaboration","submitted_at":"1997-04-25T14:11:17Z","abstract_excerpt":"The reaction gamma p -> J/Psi p has been studied in ep interactions using the ZEUS detector at HERA. The cross section for elastic J/Psi photoproduction has been measured as a function of the photon-proton centre of mass energy W in the range 40 < W < 140 GeV at a median photon virtuality Q^2 of 5*10^{-5} GeV^2. The photoproduction cross section, sigma_{gamma p -> J/Psi p}, is observed to rise steeply with W. A fit to the data presented in this paper to determine the parameter $\\delta$ in the form sigma_{gamma p -> J/Psi p} \\propto W^{\\delta} yields the value \\delta = 0.92 \\pm 0.14 \\pm 0.10. T"},"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-ex/9704013","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1997-04-25T14:11:17Z","cross_cats_sorted":[],"title_canon_sha256":"e98f0a834128d2a73d5c147601400238c4d0644ce1aa6495e09113d62d96ec5f","abstract_canon_sha256":"a9a7292a4c4efad8d1b9e5bec569aa0f71fdc1ece949298d387c6773e5c095ac"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:47:21.686497Z","signature_b64":"nKCbLw7BTI7aEddSmeTNlWc3utJkCeYvJEaLNmTWxQchYpph1KI1AKwvJRewBnzwzDAs6vYH1ENvbqEGeYACCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87bcfd71b3dd456d4db000fcb8268ee4e1aa0ee283cedc7893dec59d9176e8d5","last_reissued_at":"2026-05-18T03:47:21.685989Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:47:21.685989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of Elastic $J/\\psi$ Photoproduction at HERA","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"ZEUS Collaboration","submitted_at":"1997-04-25T14:11:17Z","abstract_excerpt":"The reaction gamma p -> J/Psi p has been studied in ep interactions using the ZEUS detector at HERA. The cross section for elastic J/Psi photoproduction has been measured as a function of the photon-proton centre of mass energy W in the range 40 < W < 140 GeV at a median photon virtuality Q^2 of 5*10^{-5} GeV^2. The photoproduction cross section, sigma_{gamma p -> J/Psi p}, is observed to rise steeply with W. A fit to the data presented in this paper to determine the parameter $\\delta$ in the form sigma_{gamma p -> J/Psi p} \\propto W^{\\delta} yields the value \\delta = 0.92 \\pm 0.14 \\pm 0.10. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9704013","kind":"arxiv","version":2},"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-ex/9704013","created_at":"2026-05-18T03:47:21.686074+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9704013v2","created_at":"2026-05-18T03:47:21.686074+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9704013","created_at":"2026-05-18T03:47:21.686074+00:00"},{"alias_kind":"pith_short_12","alias_value":"Q66P24NT3VCW","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_16","alias_value":"Q66P24NT3VCW2TNQ","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_8","alias_value":"Q66P24NT","created_at":"2026-05-18T12:25:48.327863+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2203.11601","citing_title":"A comprehensive guide to the physics and usage of PYTHIA 8.3","ref_index":277,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T","json":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T.json","graph_json":"https://pith.science/api/pith-number/Q66P24NT3VCW2TNQAD6LQJUO4T/graph.json","events_json":"https://pith.science/api/pith-number/Q66P24NT3VCW2TNQAD6LQJUO4T/events.json","paper":"https://pith.science/paper/Q66P24NT"},"agent_actions":{"view_html":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T","download_json":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T.json","view_paper":"https://pith.science/paper/Q66P24NT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ex/9704013&json=true","fetch_graph":"https://pith.science/api/pith-number/Q66P24NT3VCW2TNQAD6LQJUO4T/graph.json","fetch_events":"https://pith.science/api/pith-number/Q66P24NT3VCW2TNQAD6LQJUO4T/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T/action/storage_attestation","attest_author":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T/action/author_attestation","sign_citation":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T/action/citation_signature","submit_replication":"https://pith.science/pith/Q66P24NT3VCW2TNQAD6LQJUO4T/action/replication_record"}},"created_at":"2026-05-18T03:47:21.686074+00:00","updated_at":"2026-05-18T03:47:21.686074+00:00"}