{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:XIU6QTF7BZRIIDNWVYY3S2D4CO","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":"ce65207bf62088e053cd37d8b2abf062ec2fdcc9c46f56a32a47d5e9d0e47b6c","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-09-25T17:53:43Z","title_canon_sha256":"4cd51d52642ae2853dd6a8aa3dc7eb14adcf75607860a9896ffcc9ea1d56d383"},"schema_version":"1.0","source":{"id":"2009.12363","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.12363","created_at":"2026-07-05T03:35:59Z"},{"alias_kind":"arxiv_version","alias_value":"2009.12363v3","created_at":"2026-07-05T03:35:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.12363","created_at":"2026-07-05T03:35:59Z"},{"alias_kind":"pith_short_12","alias_value":"XIU6QTF7BZRI","created_at":"2026-07-05T03:35:59Z"},{"alias_kind":"pith_short_16","alias_value":"XIU6QTF7BZRIIDNW","created_at":"2026-07-05T03:35:59Z"},{"alias_kind":"pith_short_8","alias_value":"XIU6QTF7","created_at":"2026-07-05T03:35:59Z"}],"graph_snapshots":[{"event_id":"sha256:a44da1339bd750c531444c59f88d877f5c3bab26149d74cfbeb54cf555ace608","target":"graph","created_at":"2026-07-05T03:35:59Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2009.12363/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the rare electromagnetic decays of neutral vector mesons (exemplified by $J/\\psi$, $\\Upsilon$, $\\rho^0$, $\\omega,\\phi$, \\ldots) into four charged leptons ($2(e^+e^-)$, $2(\\mu^+\\mu^-)$, $2(\\tau^+\\tau^-)$, $e^+e^-\\mu^+\\mu^-$, $e^+e^-\\tau^+\\tau^-$, \\ldots) at lowest order in QED. In contrast to the case of vector meson decay into a single pair of leptons, the lepton mass must be retained in these four-lepton decay channels to cutoff the mass singularity. Owing to more pronounced collinear enhancement, the branching fractions of vector mesons decays into $ 2(e^+e^-)$ are considerabl","authors_text":"Jichen Pan, Wen Chen, Xiaonu Xiong, Yu Jia, Zhewen Mo","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-09-25T17:53:43Z","title":"Four-lepton decays of neutral vector mesons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.12363","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:b402a2d7d5d0f4ec250d3075c7f92596f14c0fcac71f973f24a7be59be587da5","target":"record","created_at":"2026-07-05T03:35:59Z","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":"ce65207bf62088e053cd37d8b2abf062ec2fdcc9c46f56a32a47d5e9d0e47b6c","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-09-25T17:53:43Z","title_canon_sha256":"4cd51d52642ae2853dd6a8aa3dc7eb14adcf75607860a9896ffcc9ea1d56d383"},"schema_version":"1.0","source":{"id":"2009.12363","kind":"arxiv","version":3}},"canonical_sha256":"ba29e84cbf0e62840db6ae31b9687c13a342d8c82cc3f0c96bcd7908e4081d0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba29e84cbf0e62840db6ae31b9687c13a342d8c82cc3f0c96bcd7908e4081d0b","first_computed_at":"2026-07-05T03:35:59.438608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:35:59.438608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"duDtwix5P8YYRJsxUaRCz502Z3sfX+UAA7ErDWI56F8WyG4WZg6HfjO0brcP8yU+vsnkkrq2p/+WVxaRMCN7Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:35:59.439043Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.12363","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b402a2d7d5d0f4ec250d3075c7f92596f14c0fcac71f973f24a7be59be587da5","sha256:a44da1339bd750c531444c59f88d877f5c3bab26149d74cfbeb54cf555ace608"],"state_sha256":"f94d0648e8041dcaea1166e63a000dfedf922a7352e7133c97ea1ea5e45566dc"}