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We confirm, at 11$\\sigma$ significance, the BaBar Y(4260) --> pi+ pi- J/psi discovery, make the first observation of Y(4260) --> pi0 pi0 J/psi (5.1 sigma), and find the first evidence for Y(4260) --> K+ K- J/psi (3.7 sigma). We measure e+e- cross-sections at sqrt s = 4.26 GeV as sigma(pi+ pi- J/psi) = 58 +12-10 +- 4 pb, sigma(pi0 pi0 J/psi) = 23 +12 -8 +- 1 pb, and sigma(K+ K- J/psi) = 9 +9 -5 +-"},"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/0602034","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2006-02-20T20:56:50Z","cross_cats_sorted":[],"title_canon_sha256":"c34dc752e344cb775124169f68ae87171f04d58d1cf4b9d1b336de5c4ca79419","abstract_canon_sha256":"27f98cbe5a048b5e608626c6240bc535521e2c80f7ccf4d2d7a96a8394c41afe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:25:56.310668Z","signature_b64":"E3HKu/nwbTu2hHWmFxoxfGhnh4Dz8h9Ta8rvvb94ZS/fCf9JkM1koo4cIHt7GyADQkKLB2uYYumOE9cyMQF0DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"105043e3e95d54989ddc30ac8887c3c0109b7f7ecf2b502d26dc9acdb28c42b4","last_reissued_at":"2026-07-04T17:25:56.310284Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:25:56.310284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Charmonium Decays of $Y(4260), psi(4160), and psi(4040)","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. 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We measure e+e- cross-sections at sqrt s = 4.26 GeV as sigma(pi+ pi- J/psi) = 58 +12-10 +- 4 pb, sigma(pi0 pi0 J/psi) = 23 +12 -8 +- 1 pb, and sigma(K+ K- J/psi) = 9 +9 -5 +-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0602034","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/hep-ex/0602034/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":"hep-ex/0602034","created_at":"2026-07-04T17:25:56.310347+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0602034v2","created_at":"2026-07-04T17:25:56.310347+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0602034","created_at":"2026-07-04T17:25:56.310347+00:00"},{"alias_kind":"pith_short_12","alias_value":"CBIEHY7JLVKJ","created_at":"2026-07-04T17:25:56.310347+00:00"},{"alias_kind":"pith_short_16","alias_value":"CBIEHY7JLVKJRHO4","created_at":"2026-07-04T17:25:56.310347+00:00"},{"alias_kind":"pith_short_8","alias_value":"CBIEHY7J","created_at":"2026-07-04T17:25:56.310347+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.01539","citing_title":"Multimodal Fragmentation of All-Heavy Pentaquarks: Uncertainty-Aware Predictions for Hadron Colliders","ref_index":47,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA","json":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA.json","graph_json":"https://pith.science/api/pith-number/CBIEHY7JLVKJRHO4GCWIRB6DYA/graph.json","events_json":"https://pith.science/api/pith-number/CBIEHY7JLVKJRHO4GCWIRB6DYA/events.json","paper":"https://pith.science/paper/CBIEHY7J"},"agent_actions":{"view_html":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA","download_json":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA.json","view_paper":"https://pith.science/paper/CBIEHY7J","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ex/0602034&json=true","fetch_graph":"https://pith.science/api/pith-number/CBIEHY7JLVKJRHO4GCWIRB6DYA/graph.json","fetch_events":"https://pith.science/api/pith-number/CBIEHY7JLVKJRHO4GCWIRB6DYA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA/action/storage_attestation","attest_author":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA/action/author_attestation","sign_citation":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA/action/citation_signature","submit_replication":"https://pith.science/pith/CBIEHY7JLVKJRHO4GCWIRB6DYA/action/replication_record"}},"created_at":"2026-07-04T17:25:56.310347+00:00","updated_at":"2026-07-04T17:25:56.310347+00:00"}