{"paper":{"title":"Charged bottomonium-like states $Z_b(10610)$ and $Z_b(10650)$ and the $\\Upsilon(5S)\\to \\Upsilon(2S)\\pi^+\\pi^-$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Dian-Yong Chen, Shi-Lin Zhu, Xiang Liu","submitted_at":"2011-05-26T02:57:25Z","abstract_excerpt":"Inspired by the newly observed two charged bottomonium-like states, we consider the possible contribution from the intermediate $Z_b(10610)$ and $Z_b(10650)$ states to the $\\Upsilon(5S)\\to \\Upsilon(2S)\\pi^+\\pi^-$ decay process, which naturally explains Belle's previous observation of the anomalous $\\Upsilon(2S)\\pi^+\\pi^-$ production near the peak of $\\Upsilon(5S)$ at $\\sqrt s=10.87$ GeV [K.F. Chen {\\it et al}. (Belle Collaboration), Phys. Rev. Lett. {\\bf 100}, 112001 (2008)]. The resulting $d\\Gamma(\\Upsilon(5S)\\to \\Upsilon(2S)\\pi^+\\pi^-)/dm_{\\pi^+\\pi^-}$ and $d\\Gamma(\\Upsilon(5S)\\to \\Upsilon(2"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.5193","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"}