{"paper":{"title":"First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A.A.Korol, A.A.Salnikov, A.D.Bukin, A.N.Skrinsky, A.V.Berdyugin, A.V.Bozhenok, D.A.Bukin, E.A.Perevedentsev, E.V.Pakhtusova, I.A.Gaponenko, I.A.Koop, M.N.Achasov, M.S.Dubrovin, S.I.Dolinsky, S.I.Serednyakov, S.V.Burdin, S.V.Koshuba, T.V.Dimova, V.A.Sidorov, V.B.Golubev, V.M.Aulchenko, V.N.Ivanchenko, V.P.Druzhinin, V.V.Shary, Yu.M.Shatunov, Yu.S.Velikzhanin, Yu.V.Usov, Z.K.Silagadze","submitted_at":"1998-07-17T13:03:53Z","abstract_excerpt":"In the SND experiment at the VEPP-2M electron-positron collider the PHI(1020)--->PI0+PI0+GAMMA decay was studied. The branching ratio B(PHI--->PI0+PI0+GAMMA)=(1.14+-0.10+-0.12)x10^{-4} was measured. It was shown, that the F0(980)GAMMA mechanism dominates in this decay and the 4-quark model of F0(980) describes our data most consistently."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9807016","kind":"arxiv","version":3},"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/9807016/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"}