{"paper":{"title":"Nonet Classification of Scalar/Isoscalar Resonances below 1900 MeV: the Existence of an Extra Scalar State in the Region 1200-1600 MeV","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.V. Sarantsev, V.V. Anisovich, Yu.D. Prokoshkin","submitted_at":"1996-10-18T11:39:35Z","abstract_excerpt":"A classification of the $IJ^{PC}=00^{++}$ mesons is performed on the basis of the K-matrix analysis of meson spectra in the reactions: (i) GAMS data on $\\pi p\\to \\pi^0\\pi^0 n$, $\\eta\\eta n$, $\\eta\\eta' n$; (ii) Crystal Barrel data on $p\\bar p~(at~rest)\\to \\pi^0\\pi^0\\pi^0$, $\\pi^0\\pi^0\\eta$, $\\pi^0\\eta\\eta$; (iii) CERN-M\\\"unich data on $\\pi p\\to \\pi^+\\pi^- n$; (iiii) BNL data on $\\pi N\\to K\\bar K N$. The analysis points to the existence of four comparatively narrow scalar resonances which correspond to the following poles of the scattering amplitude (in MeV): $(1015\\pm 15)- i(43\\pm 8)$, $(1300\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9610414","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-ph/9610414/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"}