{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:WWY2IKEJHKHLNM4V6X2NMVJSJS","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":"a1c4a37fe5ceeb42d4c1f9bf740a8fad42ed7879d2c8facd2f487d9d493760de","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-03-18T16:24:38Z","title_canon_sha256":"ede98459c3067a2ad0a28149ac8743728c2f7bc84fe0c380b383171f513f4076"},"schema_version":"1.0","source":{"id":"1703.06315","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.06315","created_at":"2026-05-18T00:46:55Z"},{"alias_kind":"arxiv_version","alias_value":"1703.06315v2","created_at":"2026-05-18T00:46:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.06315","created_at":"2026-05-18T00:46:55Z"},{"alias_kind":"pith_short_12","alias_value":"WWY2IKEJHKHL","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WWY2IKEJHKHLNM4V","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WWY2IKEJ","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:2df37b24da45c1e2882934a4890538ec9f62c6e817051bc69232aedef4d3a9ad","target":"graph","created_at":"2026-05-18T00:46:55Z","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":"The role of the a_1(1420) resonance in the three-pion decays of the tau lepton is investigated using a phenomenological model. For all data before 2008, roughly equal fit quality is achieved when the basic a_1(1260) resonance is supplemented with either a_1(1640) or a_1(1420). However, two recent and more precise data sets require resonances with masses that are not very far from that of a_1(1420). This suggests that the axial-vector resonance that accompanies the a_1(1260) in the three-pion decays of the tauon is a_1(1420), not a_1(1640), as believed up to now. More data are needed to demonst","authors_text":"Peter Lichard","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-03-18T16:24:38Z","title":"Resonance a_1(1420) and the Three-Pion Decays of the Tauon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.06315","kind":"arxiv","version":2},"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:fee487b0fbaf55cbb1462fdd2e09aeb5f067248b6f90f50514a5632802dbf977","target":"record","created_at":"2026-05-18T00:46:55Z","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":"a1c4a37fe5ceeb42d4c1f9bf740a8fad42ed7879d2c8facd2f487d9d493760de","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-03-18T16:24:38Z","title_canon_sha256":"ede98459c3067a2ad0a28149ac8743728c2f7bc84fe0c380b383171f513f4076"},"schema_version":"1.0","source":{"id":"1703.06315","kind":"arxiv","version":2}},"canonical_sha256":"b5b1a428893a8eb6b395f5f4d655324cb6fad03b8f8c2c30268a5d02f4253667","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5b1a428893a8eb6b395f5f4d655324cb6fad03b8f8c2c30268a5d02f4253667","first_computed_at":"2026-05-18T00:46:55.084395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:55.084395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4xO+78cAldpvD1nJR9u9WFhHV/m9xuBS9zwbmzzA9mZZBcOTY7ZTA1XKeiD2mt2NbJNloNPdGw2CSI13L6YzCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:55.085022Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.06315","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fee487b0fbaf55cbb1462fdd2e09aeb5f067248b6f90f50514a5632802dbf977","sha256:2df37b24da45c1e2882934a4890538ec9f62c6e817051bc69232aedef4d3a9ad"],"state_sha256":"cb7cdcda4a2f4b2a5ffeec79425982718b36a8c09fa0eea5b55ea6e95720793e"}