{"paper":{"title":"Reproducing the $Z_c(3900)$ structure through the initial-single-pion-emission mechanism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Dian-Yong Chen, Takayuki Matsuki, Xiang Liu","submitted_at":"2013-04-22T06:09:30Z","abstract_excerpt":"Being stimulated by the recent BESIII observation of a charged charmoniumlike structure $Z_c(3900)$, in this work we study the distributions of the $J/\\psi\\pi^\\pm$ and $\\pi^+\\pi^-$ invariant mass spectra of the $Y(4260)\\to \\pi^+\\pi^- J/\\psi$ decay by the initial-single-pion-emission mechanism, where the interference effects of the ISPE mechanism with two other decay modes are also taken into account. The obtained $d\\Gamma(Y(4260)\\to \\pi^+\\pi^- J/\\psi)/dm_{J/\\psi \\pi^\\pm}$ and $d\\Gamma(Y(4260)\\to \\pi^+\\pi^- J/\\psi)/dm_{\\pi^+ \\pi^-}$ marvelously agree with the BESIII data to reproduce the $Z_c(3"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5845","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"}