{"paper":{"title":"Are the $Y$ states around 4.6 GeV from $e^+e^-$ annihilation higher charmonia?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Jun-Zhang Wang, Ri-Qing Qian, Takayuki Matsuki, Xiang Liu","submitted_at":"2020-01-01T09:33:20Z","abstract_excerpt":"In this work, we present the mass spectrum of higher charomona around and above 4.6 GeV by adopting the unquenched potential model. We perform a combined fit to the updated experimental data of $e^+e^- \\to \\psi(2S)\\pi^+\\pi^-$ and $e^+e^-\\to \\Lambda_c\\bar{\\Lambda}_c$. To understand the \"platform\" structure observed in the range of $4.57 \\sim 4.60$ GeV existing in the $\\Lambda_c\\bar{\\Lambda}_c$ invariant mass spectrum of $e^+e^-\\to \\Lambda_c\\bar{\\Lambda}_c$ of BESIII, we introduce two resonances in this combined fit to the $e^+e^- \\to \\psi(2S)\\pi^+\\pi^-$ and $e^+e^-\\to \\Lambda_c\\bar{\\Lambda}_c$,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.00175","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.00175/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}