{"paper":{"title":"Dipion invariant mass distribution of the anomalous $\\Upsilon(1S) \\pi^{+} \\pi^{-}$ and $\\Upsilon(2S) \\pi^{+} \\pi^{-}$ production near the peak of $\\Upsilon(10860)$","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, Xue-Qian Li","submitted_at":"2011-05-09T13:59:17Z","abstract_excerpt":"Considering the defects of the previous work for estimating the anomalous production rates of $e^+e^-\\to \\Upsilon(1S)\\pi^+\\pi^-,\\,\\Upsilon(2S)\\pi^+\\pi^-$ near the peak of the $\\Upsilon(5S)$ resonance at $\\sqrt s=10.87$ GeV [K.F. Chen {\\it et al}. (Belle Collaboration), Phys. Rev. Lett. {\\bf 100}, 112001 (2008)], we suggest a new scenario where the contributions from the direct dipion transition and the final state interactions interfere to result in not only the anomalously large production rates, but also the lineshapes of the differential widths consistent with the experimental measurement w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.1672","kind":"arxiv","version":4},"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"}