{"paper":{"title":"The $\\phi\\to\\eta\\pi^0\\gamma$ decay","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A.A.Korol, A.A.Mamutkin, A.A.Salnikov, A.D.Bukin, A.N.Skrinsky, A.V.Berdyugin, A.V.Bozhenok, A.V.Vasiljev, D.A.Bukin, E.E.Pyata, E.V.Pakhtusova, I.A.Gaponenko, K.I.Beloborodov, M.N.Achasov, M.S.Dubrovin, M.S.Korostelev, S.E.Baru, S.I.Dolinsky, S.I.Serednyakov, S.V.Burdin, S.V.Koshuba, T.V.Dimova, V.A.Sidorov, V.B.Golubev, V.N.Ivanchenko, V.P.Druzhinin, V.V.Shary, Yu.M.Shatunov, Z.K.Silagadze","submitted_at":"2000-03-27T11:06:29Z","abstract_excerpt":"Rare radiative decay $\\phi\\to\\eta\\pi^0\\gamma$ was studied with SND detector at {VEPP-2M} electron-positron collider and its branching ratio was measured: $B(\\phi\\to\\eta\\pi^0\\gamma)=(0.88\\pm0.14\\pm0.09)\\cdot 10^{-4}$. Significant contribution of the $a_0(980)\\gamma$ intermediate state was observed in the decay. The result is based on total integrated luminosity corresponding to $2\\cdot10^7$ produced $\\phi$ mesons."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0003031","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0003031/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}