{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:DTS4IYLMX7J7XGSTXYI6FHMZKU","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":"387ab338a23c4bb2adb0bb91f4e401a709c3dc390a3360ab96dabe286039d693","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-03-17T23:01:09Z","title_canon_sha256":"2b8f115c6d83986323ac9297a9c0bb44a585e7aa40f994464db0f9b2b1aaccac"},"schema_version":"1.0","source":{"id":"hep-ph/9903391","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9903391","created_at":"2026-07-04T14:48:36Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9903391v1","created_at":"2026-07-04T14:48:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9903391","created_at":"2026-07-04T14:48:36Z"},{"alias_kind":"pith_short_12","alias_value":"DTS4IYLMX7J7","created_at":"2026-07-04T14:48:36Z"},{"alias_kind":"pith_short_16","alias_value":"DTS4IYLMX7J7XGST","created_at":"2026-07-04T14:48:36Z"},{"alias_kind":"pith_short_8","alias_value":"DTS4IYLM","created_at":"2026-07-04T14:48:36Z"}],"graph_snapshots":[{"event_id":"sha256:b740684447ca231f749d34ac7bacd8005c4fc8a22c846b01e5afe25c8da67208","target":"graph","created_at":"2026-07-04T14:48:36Z","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/hep-ph/9903391/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A complete study of the one-loop induced decay Z -> neutrino antineutrino photon is presented within the framework of the Standard Model. The advantages of using a nonlinear gauge are stressed. We have found that the main contributions come from the electric dipole and the magnetic dipole transitions of the Z gauge boson and the neutrino, respectively. We obtain a branching ratio B=7.16E-10, which is about four orders of magnitude smaller than the bound recentely obtained by the L3 collaboration and thus it leaves open a window to search for new physics effects in single-photon decays of the Z","authors_text":"G. Tavares-Velasco, J.J. Toscano, J.M. Hernandez, M.A. Perez","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1999-03-17T23:01:09Z","title":"The decay Z -> neutrino antineutrino photon in the Standard Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9903391","kind":"arxiv","version":1},"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:e4fbda321c0af7e7c91f26be74702b68b2ff63b6e20a6245f280292c107e96da","target":"record","created_at":"2026-07-04T14:48:36Z","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":"387ab338a23c4bb2adb0bb91f4e401a709c3dc390a3360ab96dabe286039d693","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-03-17T23:01:09Z","title_canon_sha256":"2b8f115c6d83986323ac9297a9c0bb44a585e7aa40f994464db0f9b2b1aaccac"},"schema_version":"1.0","source":{"id":"hep-ph/9903391","kind":"arxiv","version":1}},"canonical_sha256":"1ce5c4616cbfd3fb9a53be11e29d995505e3ef20d9f3f8150da4f73f5002da44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ce5c4616cbfd3fb9a53be11e29d995505e3ef20d9f3f8150da4f73f5002da44","first_computed_at":"2026-07-04T14:48:36.791611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:48:36.791611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JfPjFtBovbuyjJ2jaCvnEFvAMCZiGn+SMJcw1b/RamtCYB0ZWmIsWy72xQ8967UFZ9zpZSrybwB2zu7choY+BQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:48:36.792073Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9903391","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4fbda321c0af7e7c91f26be74702b68b2ff63b6e20a6245f280292c107e96da","sha256:b740684447ca231f749d34ac7bacd8005c4fc8a22c846b01e5afe25c8da67208"],"state_sha256":"7b67987efc4d645e677bd89c7f77f8bde03a570d0e0796f466ae662eb494341c"}