{"paper":{"title":"Charged charmoniumlike structures in the $e^+ e^- \\to \\psi(3686) \\pi^+ \\pi^-$ process based on the ISPE mechanism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Dian-Yong Chen, Qi Huang, Takayuki Matsuki, Xiang Liu","submitted_at":"2019-05-14T14:48:24Z","abstract_excerpt":"In 2017, the BESIII Collaboration announced the observation of a charged charmonium-like structure in the $\\psi(3686)\\pi^\\pm$ invariant mass spectrum of the $e^+ e^- \\to \\psi(3686) \\pi^+ \\pi^-$ process at different energy points, which enables us to perform a precise study of this process based on the initial single pion emission (ISPE) mechanism. In this work, we perform a combined fit to the experimental data of the cross section of $e^+ e^- \\to \\psi(3686) \\pi^+ \\pi^-$, and the corresponding $\\psi(3686)\\pi^\\pm$ and dipion invariant mass spectra. Our result shows that the observed charged cha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.05650","kind":"arxiv","version":1},"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"}