{"paper":{"title":"Properties of the light scalar mesons face the experimental data on the $\\phi\\to\\pi^0\\pi^0\\gamma$ decay and the $\\pi\\pi$ scattering","license":"","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"A.V. Kiselev, N.N Achasov","submitted_at":"2005-12-03T15:21:58Z","abstract_excerpt":"The high-statistical KLOE data on the $\\phi\\to\\pi^0\\pi^0\\gamma$ decay are described simultaneously with the data on $\\pi\\pi$ scattering and the $\\pi\\pi\\to K\\bar K$ reaction. The description is carried out taking into account the chiral shielding of the putative $\\sigma (600)$ meson and it's mixing with the well-established $f_0(980)$ meson. It is shown that the data don't contradict the existence of the $\\sigma (600)$ meson and yield evidence in favor of the four-quark nature of the $\\sigma (600)$ and $f_0(980)$ mesons."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0512047","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":""},"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"}