{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:7HRHZEX2V6XQLV7M53G3BFR6UU","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":"20e0353f3300edfb011d0cf44df36805f149551dfbe01f23e853e59480690aac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2021-10-12T09:21:24Z","title_canon_sha256":"7167c0af7ed92609eba124a6177279c7deb9c940a5807ac3c8495593d63a3df9"},"schema_version":"1.0","source":{"id":"2110.05845","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.05845","created_at":"2026-07-05T03:22:07Z"},{"alias_kind":"arxiv_version","alias_value":"2110.05845v1","created_at":"2026-07-05T03:22:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.05845","created_at":"2026-07-05T03:22:07Z"},{"alias_kind":"pith_short_12","alias_value":"7HRHZEX2V6XQ","created_at":"2026-07-05T03:22:07Z"},{"alias_kind":"pith_short_16","alias_value":"7HRHZEX2V6XQLV7M","created_at":"2026-07-05T03:22:07Z"},{"alias_kind":"pith_short_8","alias_value":"7HRHZEX2","created_at":"2026-07-05T03:22:07Z"}],"graph_snapshots":[{"event_id":"sha256:7adfd91b561f60c32453e5cf72f56340302215018e92e0220d27f16480475cf0","target":"graph","created_at":"2026-07-05T03:22:07Z","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/2110.05845/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The process $e^+e^-\\to\\eta\\eta\\gamma$ is studied in the center-of-mass energy range 1.17-2.00 GeV using data with an integrated luminosity of 201 pb$^{-1}$collected by the SND detector at the VEPP-2000 $e^+e^-$ collider. The $e^+e^-\\to\\eta\\eta\\gamma$ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the $\\phi\\eta$ intermediate state. Our result on the $e^+e^-\\to\\eta\\eta\\gamma$ cross section is consistent with the $e^+e^-\\to\\phi\\eta$ measurement in the $\\phi\\to K^+ K^-$ mode. The search for radiative processes contri","authors_text":"A.A. Botov, A.A. Korol, A.E. Obrazovsky, A.G. Bogdanchikov, A.G. Kharlamov, A.I. Senchenko, A.N. Kirpotin, A.S. Kasaev, A.S. Kupich, A.V. Berdyugin, A.Yu. Barnyakov, D.A. Shtol, D.B.Shwartz, D.E. Berkaev, D.N. Shatilov, D.P. Kovrizhin, D.V. Rabusov, E.V. Pakhtusova, I.A. Koop, I.K. Surin, K.A. Martin, K.I.Beloborodov, K.V. Pugachev, L.V. Kardapoltsev, M.V. Timoshenko, N.A. Melnikova, N.Yu. Muchnoy, S.I. Serednyakov, SND Collaboration: M.N. Achasov, T.V. Dimova, V.N. Zhabin, V.P. Druzhinin, V.V. Zhulanov, Yu.A. Rogovsky, Yu.M. Shatunov, Yu.V. Usov, Z.K. Silagadze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2021-10-12T09:21:24Z","title":"Study of the process $e^+e^- \\to \\eta\\eta\\gamma$ in the energy range $\\sqrt{s} = \\mbox{1.17--2.00}$ GeV with the SND detector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.05845","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:f09b77591ab1148640e2ade8157a20bfe58e8d11b5b4898e22a3a6a465e960ef","target":"record","created_at":"2026-07-05T03:22:07Z","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":"20e0353f3300edfb011d0cf44df36805f149551dfbe01f23e853e59480690aac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2021-10-12T09:21:24Z","title_canon_sha256":"7167c0af7ed92609eba124a6177279c7deb9c940a5807ac3c8495593d63a3df9"},"schema_version":"1.0","source":{"id":"2110.05845","kind":"arxiv","version":1}},"canonical_sha256":"f9e27c92faafaf05d7eceecdb0963ea5101e2d9f3786a65e0493abba8f2817dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9e27c92faafaf05d7eceecdb0963ea5101e2d9f3786a65e0493abba8f2817dc","first_computed_at":"2026-07-05T03:22:07.352059Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:22:07.352059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ovPTz09D74sL37NtR9AcoqnVkPbqRENjT6KU6gVqZ6nvGIm21svIj1COyWbn3SGZtqrkZGAU3p+gNhLGC1GwCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:22:07.352616Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.05845","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f09b77591ab1148640e2ade8157a20bfe58e8d11b5b4898e22a3a6a465e960ef","sha256:7adfd91b561f60c32453e5cf72f56340302215018e92e0220d27f16480475cf0"],"state_sha256":"3182c82ce1d99d6a3bb20ad6b166b84e87f8170bd305abeca321609de02886fd"}