{"paper":{"title":"A novel explanation of charmonium-like structure in $e^+e^-\\to \\psi(2S)\\pi^+\\pi^-$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Dian-Yong Chen, Jun He, Xiang Liu","submitted_at":"2011-01-13T02:21:49Z","abstract_excerpt":"We first present a non-resonant description to charmonium-like structure $Y(4360)$ in the $\\psi(2S)\\pi^+\\pi^-$ invariant mass spectrum of the $e^+e^-\\to \\psi(2S)\\pi^+\\pi^-$ process. The $Y(4360)$ structure is depicted well by the interference effect of the production amplitudes of $e^{+} e^{-} \\to \\psi(2S) \\pi^+ \\pi^-$ via the intermediate charmonia $\\psi(4160)/\\psi(4415)$ and direct $e^+e^-$ annihilation into $\\psi(2S)\\pi^+ \\pi^-$. This fact shows that $Y(4360)$ is not a genuine resonance, which naturally explains why $Y(4360)$ was only reported in its hidden-charm decay channel $\\psi(2S)\\pi^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2474","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"}