{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:I3O2PVAMPP5KA3SBXDMX6FYMAZ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"23136179739ca543faaf9af5deb706f2afa964f867307f1d28d18448ba9c2fa7","cross_cats_sorted":["hep-ex","hep-lat"],"license":"","primary_cat":"hep-ph","submitted_at":"2002-02-01T09:05:50Z","title_canon_sha256":"d2abc99d46117f44fac68a3659968e0737acd9cb41ed3d2047872552f701a3c4"},"schema_version":"1.0","source":{"id":"hep-ph/0202002","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0202002","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0202002v3","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0202002","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"pith_short_12","alias_value":"I3O2PVAMPP5K","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"I3O2PVAMPP5KA3SB","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"I3O2PVAM","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:70fc0565a7d75efee7b3f1fac369e159bc5bcc485753c9bd2bed40fac231535b","target":"graph","created_at":"2026-05-18T02:36:38Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We study the CP-violating asymmetry {\\cal A}_{\\rm CP}, which arises, in \\eta\\to\\pi^+\\pi^- e^+e^-, from the angular correlation of the e^+ e^- and \\pi^+\\pi^- planes due to the interference between the magnetic and electric decay amplitudes. With the phenomenologically determined magnetic amplitude and branching ratio as input, the asymmetry, induced by the electric bremsstrahlung amplitude through the CP-violating decay \\eta\\to\\pi^+\\pi^-, and by an unconventional tensor type operator, has been estimated respectively. The upper bound of {\\cal A}_{\\rm CP} from the former is about 10^{-3}, and the","authors_text":"Dao-Neng Gao","cross_cats":["hep-ex","hep-lat"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2002-02-01T09:05:50Z","title":"The CP-violating asymmetry in \\eta\\to\\pi^+ \\pi^- e^+e^-"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0202002","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3de29b03eaa72e8f60c5e8e6d75bb9b6495d48c25a1b22cebc849d5a74aff1ff","target":"record","created_at":"2026-05-18T02:36:38Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"23136179739ca543faaf9af5deb706f2afa964f867307f1d28d18448ba9c2fa7","cross_cats_sorted":["hep-ex","hep-lat"],"license":"","primary_cat":"hep-ph","submitted_at":"2002-02-01T09:05:50Z","title_canon_sha256":"d2abc99d46117f44fac68a3659968e0737acd9cb41ed3d2047872552f701a3c4"},"schema_version":"1.0","source":{"id":"hep-ph/0202002","kind":"arxiv","version":3}},"canonical_sha256":"46dda7d40c7bfaa06e41b8d97f170c067619f3e566c8a84705463dd0f4dbb15f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46dda7d40c7bfaa06e41b8d97f170c067619f3e566c8a84705463dd0f4dbb15f","first_computed_at":"2026-05-18T02:36:38.588110Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:36:38.588110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZAvvrdSa/KzOhbgJNYTeJgPXroAZueEQzslpZR8ODIXuxIyOF0aBitCgii90J/ryB97BMZHw+CRiIl+2zsHWAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:36:38.588733Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0202002","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3de29b03eaa72e8f60c5e8e6d75bb9b6495d48c25a1b22cebc849d5a74aff1ff","sha256:70fc0565a7d75efee7b3f1fac369e159bc5bcc485753c9bd2bed40fac231535b"],"state_sha256":"6334a49e5a07257f14f6d36abc8d223501a6fb6818941b1136ed59530c7c245b"}