{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:4Q4GQAQUSFJKGZCCE2RZ2UKMXC","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":"75b56c190baa8bdcf66e75e3ea1300c12b38ab8830c2ed3e86bedaa84bad924b","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-12-20T16:29:20Z","title_canon_sha256":"1d37ded6ceefb049f079f7c066c86cdfe18b5461e3e8b99a091664943835474c"},"schema_version":"1.0","source":{"id":"0812.3980","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.3980","created_at":"2026-05-18T04:25:51Z"},{"alias_kind":"arxiv_version","alias_value":"0812.3980v2","created_at":"2026-05-18T04:25:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.3980","created_at":"2026-05-18T04:25:51Z"},{"alias_kind":"pith_short_12","alias_value":"4Q4GQAQUSFJK","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"4Q4GQAQUSFJKGZCC","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"4Q4GQAQU","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:d4543ef76a53d10365a19bfa4e486f8ebdb137fd4bb10930ffaf624b7251a7b5","target":"graph","created_at":"2026-05-18T04:25:51Z","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":"psi and Upsilon decays may be used to search for light neutral spin-1 or spin-0 bosons associated with a broken extra-U(1) symmetry, local or global, acting axially on quarks and leptons, as may be present in supersymmetric theories with a lambda H_1 H_2 S superpotential term. Recent data on Upsilon --> gamma + invisible neutral constrain an axial, pseudoscalar or scalar coupling to b to f_bA < 4 10^-7 m_U(MeV)/ sqrt B_inv, f_bP < 4 10^-3/ sqrt B_inv or f_bS < 6 10^-3/ sqrt B_inv, respectively. This also constrains, from universality properties, couplings to electrons to f_eA < 4 10^-7 m_U(MeV","authors_text":"Pierre Fayet","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-12-20T16:29:20Z","title":"U(1)_A symmetry in two-doublet models, U bosons or light scalars, and psi and Upsilon decays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.3980","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:ac1bcf0991417303c543ddf2c9bfa98b01975b344e2e13b5f7eaf4292a4f6af2","target":"record","created_at":"2026-05-18T04:25:51Z","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":"75b56c190baa8bdcf66e75e3ea1300c12b38ab8830c2ed3e86bedaa84bad924b","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-12-20T16:29:20Z","title_canon_sha256":"1d37ded6ceefb049f079f7c066c86cdfe18b5461e3e8b99a091664943835474c"},"schema_version":"1.0","source":{"id":"0812.3980","kind":"arxiv","version":2}},"canonical_sha256":"e4386802149152a3644226a39d514cb89f6d07a84fd9b80133f1d5e8ad433f71","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4386802149152a3644226a39d514cb89f6d07a84fd9b80133f1d5e8ad433f71","first_computed_at":"2026-05-18T04:25:51.471268Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:25:51.471268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fI4vJOGOB2DXRW1VX9CmbmamVqUtqVueR/L9e0NzUCGs5hzh9usMSJ2/qX6IHD5837RR1nY5eqUGqEud6XCCAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:25:51.472144Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.3980","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac1bcf0991417303c543ddf2c9bfa98b01975b344e2e13b5f7eaf4292a4f6af2","sha256:d4543ef76a53d10365a19bfa4e486f8ebdb137fd4bb10930ffaf624b7251a7b5"],"state_sha256":"5dcc4d9aa15731666493ee09576be113a8e1a1fb5d4ba7f7564d87b048416637"}