{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:AEIE7KLB3ASDJ6Z2Y6OA3R54XM","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":"6480575a1df95996fe0c8035077ac1dafdb0949087d1615e458fece131d222fd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-24T17:39:58Z","title_canon_sha256":"c71404b547785e8bdb8832970f2460728d9af8c8ef4b7d8047b24408bfc7de47"},"schema_version":"1.0","source":{"id":"2412.18567","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.18567","created_at":"2026-07-05T09:53:57Z"},{"alias_kind":"arxiv_version","alias_value":"2412.18567v1","created_at":"2026-07-05T09:53:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.18567","created_at":"2026-07-05T09:53:57Z"},{"alias_kind":"pith_short_12","alias_value":"AEIE7KLB3ASD","created_at":"2026-07-05T09:53:57Z"},{"alias_kind":"pith_short_16","alias_value":"AEIE7KLB3ASDJ6Z2","created_at":"2026-07-05T09:53:57Z"},{"alias_kind":"pith_short_8","alias_value":"AEIE7KLB","created_at":"2026-07-05T09:53:57Z"}],"graph_snapshots":[{"event_id":"sha256:8bf2e383957bb39b9e25d66ceed5a6d998052508af7c46a3f3b95208ec7f3143","target":"graph","created_at":"2026-07-05T09:53:57Z","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/2412.18567/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Very recently, the two-photon decay width of the $\\eta_b$ meson was computed with lattice QCD methods. This decay has not yet been measured. The knowledge of this width allows for the calculation of the $\\eta_b$ production cross section through photon-photon interactions in ultra-peripheral $PbPb$ collisions. In this work we present this calculation, which is the first application of the lattice result. Since UPCs are gaining an increasing attention of the heavy ion community, we take the opportunity to perform a comprehensive study of the different ways of defining ultra-peripheral collisions","authors_text":"C.N. Azevedo, F.C. Sobrinho, F.S. Navarra","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-24T17:39:58Z","title":"Production of $\\eta_b$ in ultra-peripheral $Pb Pb$ collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.18567","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":"sha256:739003778c0f7b6150c78e7fe7ac0ffd6b045546aad2df1fc523a645f5745ca8","target":"record","created_at":"2026-07-05T09:53:57Z","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":"6480575a1df95996fe0c8035077ac1dafdb0949087d1615e458fece131d222fd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-12-24T17:39:58Z","title_canon_sha256":"c71404b547785e8bdb8832970f2460728d9af8c8ef4b7d8047b24408bfc7de47"},"schema_version":"1.0","source":{"id":"2412.18567","kind":"arxiv","version":1}},"canonical_sha256":"01104fa961d82434fb3ac79c0dc7bcbb27b79d69449112708488bb0356c9c3c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01104fa961d82434fb3ac79c0dc7bcbb27b79d69449112708488bb0356c9c3c9","first_computed_at":"2026-07-05T09:53:57.588762Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:53:57.588762Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zdj27FEcgIiI5VcvZMZ82XD02ehzNmZYrRMlLrBr2Flc1OBUbIkH2IITnabTcwGoXeJExYmDDkNwxAyEPlyxAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:53:57.589191Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.18567","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:739003778c0f7b6150c78e7fe7ac0ffd6b045546aad2df1fc523a645f5745ca8","sha256:8bf2e383957bb39b9e25d66ceed5a6d998052508af7c46a3f3b95208ec7f3143"],"state_sha256":"0c4482a50daf4f71024ff976bef3dae95a21c2e9eae24c806db84e390f699d2e"}