{"paper":{"title":"Effect of the $K\\overline{K}$ and $\\eta\\eta$ channels and interference phenomena in the two-pion and $K\\overline{K}$ transitions of charmonia and bottomonia","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Miroslav Nagy, Petr Byd\\v{z}ovsk\\'y, Robert Kami\\'nski, Thomas Gutsche, Valery E. Lyubovitskij, Yury S. Surovtsev","submitted_at":"2017-10-02T14:25:10Z","abstract_excerpt":"It is shown that the basic shape of dipion and $K\\overline{K}$ mass spectra in decays $J/\\psi\\to\\phi(\\pi\\pi,K\\overline{K})$, $\\psi(2S)\\to J/\\psi\\,\\pi\\pi$, $Y(4260)\\to J/\\phi~\\pi\\pi$ and in the two-pion transitions of bottomonia states are explained by an unified mechanism based on the contribution of the $\\pi\\pi$, $K\\overline{K}$ and $\\eta\\eta$ coupled channels including their interference. The role of the individual $f_0$ resonances in making up the shape of the dipion mass distributions in the charmonia and bottomonia decays is considered."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.00685","kind":"arxiv","version":2},"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"}