{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7C2VKWL3C53FL3I2Q5UQIC4J2V","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":"985477c98fd9189687e712ed89fd3b5d678350072a3ac51005e8e6ada9744983","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-30T20:59:18Z","title_canon_sha256":"3274e75f0a64332526230d0fefae2cfad9a98fc34e890e870f0fa6d1d982fcba"},"schema_version":"1.0","source":{"id":"1512.09135","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.09135","created_at":"2026-05-18T01:18:38Z"},{"alias_kind":"arxiv_version","alias_value":"1512.09135v1","created_at":"2026-05-18T01:18:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.09135","created_at":"2026-05-18T01:18:38Z"},{"alias_kind":"pith_short_12","alias_value":"7C2VKWL3C53F","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"7C2VKWL3C53FL3I2","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"7C2VKWL3","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:06ecb101581733dd7dd75c8a5da2d2ca590b8b1db8b42fc6703c1f8a63057897","target":"graph","created_at":"2026-05-18T01:18:38Z","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":"We present a detailed study of the exclusive radiative decays $Z\\to\\eta^{(\\prime)}\\gamma$ employing the QCD factorization approach. We derive a factorization formula for the decay amplitudes valid at leading power in an expansion in $(\\Lambda_{QCD}/m_Z)^2$, which includes convolutions of calculable hard-scattering kernels with the leading-twist quark and gluon light-cone distribution amplitudes of the mesons. Large logarithms arising in the evolution from the high scale $m_Z$ down to hadronic scales are resummed using the renormalization group, carefully accounting for the effects of the heavy","authors_text":"Cornell Univ.), Matthias Koenig (JGU Mainz), Matthias Neubert (MITP Mainz, Stefan Alte (JGU Mainz)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-30T20:59:18Z","title":"Exclusive Radiative Z-Boson Decays to Mesons with Flavor-Singlet Components"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.09135","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:b507b608ce2acb072060cfd067a560a2eada64bc740f61c65c2374a76cc35903","target":"record","created_at":"2026-05-18T01:18:38Z","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":"985477c98fd9189687e712ed89fd3b5d678350072a3ac51005e8e6ada9744983","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-30T20:59:18Z","title_canon_sha256":"3274e75f0a64332526230d0fefae2cfad9a98fc34e890e870f0fa6d1d982fcba"},"schema_version":"1.0","source":{"id":"1512.09135","kind":"arxiv","version":1}},"canonical_sha256":"f8b555597b177655ed1a8769040b89d561bee2a0db6a85c566825728a65ba6aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8b555597b177655ed1a8769040b89d561bee2a0db6a85c566825728a65ba6aa","first_computed_at":"2026-05-18T01:18:38.788692Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:38.788692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1lz8zTjIjcQKlUN+y2foQ0Pw/oTx3S6OEn0GZ+CeGfDi+lAgcWNVanEI+pVl6dqvzmCXeK/9EDOkkjhpoiwLAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:38.789258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.09135","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b507b608ce2acb072060cfd067a560a2eada64bc740f61c65c2374a76cc35903","sha256:06ecb101581733dd7dd75c8a5da2d2ca590b8b1db8b42fc6703c1f8a63057897"],"state_sha256":"590347c16ad493d08c8e589ebb7332a8ce07dbcd3f5df01dee22d690ba95bd80"}