{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:CH3I5GRQZAHIS7YZKAHTTOHUTX","short_pith_number":"pith:CH3I5GRQ","schema_version":"1.0","canonical_sha256":"11f68e9a30c80e897f19500f39b8f49dc35122c38e02fd76d407f928a183a65e","source":{"kind":"arxiv","id":"0909.4748","version":2},"attestation_state":"computed","paper":{"title":"Central exclusive chi_c meson production at the Tevatron revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"L.A. Harland-Lang, M.G. Ryskin, V.A. Khoze, W.J. Stirling","submitted_at":"2009-09-25T17:31:12Z","abstract_excerpt":"Motivated by the recent experimental observation of exclusive chi_c events at the Tevatron, we revisit earlier studies of central exclusive scalar chi_c0 meson production, before generalising the existing formalism to include chi_c1 and chi_c2 mesons. Although chi_c0 production was previously assumed to be dominant, we find that the chi_c1 and chi_c2 rates for the experimentally considered chi_c -> J/psi gamma -> mu+ mu- gamma decay process are in fact comparable to the chi_c0 rate. We have developed a new Monte Carlo event generator, SuperCHIC, which models the central exclusive production of"},"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":"0909.4748","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-25T17:31:12Z","cross_cats_sorted":[],"title_canon_sha256":"b0ab38938d52e04286877df5e0bd2a22f1ba648527e2d91d5e99e7831973b958","abstract_canon_sha256":"32b4d68837ef1eaed7fb5cdecbd1478e35219e3da6e1b26a25686614749a26cc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:21:37.157881Z","signature_b64":"Omzrx7VjD7ZhP+l6ws7SZ+J5abJp2EkVPyjnTNoZEXrYe9frxYEv2CBFjPK7WIiQuF/qPzkXqe1mQk1yo/7oCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"11f68e9a30c80e897f19500f39b8f49dc35122c38e02fd76d407f928a183a65e","last_reissued_at":"2026-07-04T17:21:37.157497Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:21:37.157497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Central exclusive chi_c meson production at the Tevatron revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"L.A. Harland-Lang, M.G. Ryskin, V.A. Khoze, W.J. Stirling","submitted_at":"2009-09-25T17:31:12Z","abstract_excerpt":"Motivated by the recent experimental observation of exclusive chi_c events at the Tevatron, we revisit earlier studies of central exclusive scalar chi_c0 meson production, before generalising the existing formalism to include chi_c1 and chi_c2 mesons. Although chi_c0 production was previously assumed to be dominant, we find that the chi_c1 and chi_c2 rates for the experimentally considered chi_c -> J/psi gamma -> mu+ mu- gamma decay process are in fact comparable to the chi_c0 rate. We have developed a new Monte Carlo event generator, SuperCHIC, which models the central exclusive production of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4748","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0909.4748/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"0909.4748","created_at":"2026-07-04T17:21:37.157551+00:00"},{"alias_kind":"arxiv_version","alias_value":"0909.4748v2","created_at":"2026-07-04T17:21:37.157551+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4748","created_at":"2026-07-04T17:21:37.157551+00:00"},{"alias_kind":"pith_short_12","alias_value":"CH3I5GRQZAHI","created_at":"2026-07-04T17:21:37.157551+00:00"},{"alias_kind":"pith_short_16","alias_value":"CH3I5GRQZAHIS7YZ","created_at":"2026-07-04T17:21:37.157551+00:00"},{"alias_kind":"pith_short_8","alias_value":"CH3I5GRQ","created_at":"2026-07-04T17:21:37.157551+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/CH3I5GRQZAHIS7YZKAHTTOHUTX","json":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX.json","graph_json":"https://pith.science/api/pith-number/CH3I5GRQZAHIS7YZKAHTTOHUTX/graph.json","events_json":"https://pith.science/api/pith-number/CH3I5GRQZAHIS7YZKAHTTOHUTX/events.json","paper":"https://pith.science/paper/CH3I5GRQ"},"agent_actions":{"view_html":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX","download_json":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX.json","view_paper":"https://pith.science/paper/CH3I5GRQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0909.4748&json=true","fetch_graph":"https://pith.science/api/pith-number/CH3I5GRQZAHIS7YZKAHTTOHUTX/graph.json","fetch_events":"https://pith.science/api/pith-number/CH3I5GRQZAHIS7YZKAHTTOHUTX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX/action/storage_attestation","attest_author":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX/action/author_attestation","sign_citation":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX/action/citation_signature","submit_replication":"https://pith.science/pith/CH3I5GRQZAHIS7YZKAHTTOHUTX/action/replication_record"}},"created_at":"2026-07-04T17:21:37.157551+00:00","updated_at":"2026-07-04T17:21:37.157551+00:00"}