{"paper":{"title":"Study on decays of $Z_c(4020)$ and $Z_c(3900)$ into $h_c+\\pi$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Hong-Wei Ke, Xue-Qian Li","submitted_at":"2016-01-14T12:14:42Z","abstract_excerpt":"At the invariant mass spectrum of $h_c\\pi^\\pm$ a new resonance $Z_c(4020)$ has been observed, however the previously confirmed $Z_c(3900)$ does not show up at this channel. In this paper we assume that $Z_c(3900)$ and $Z_c(4020)$ are molecular states of $D\\bar D^*(D^{*} \\bar D)$ and $D^*\\bar D^*$ respectively, then we calculate the transition rates of $Z_c(3900)\\to h_c+\\pi$ and $Z_c(4020)\\to h_c+\\pi$ in the light front model. Our results show that the partial width of $Z_c(3900)\\to h_c+\\pi$ is only three times smaller than that of $Z_c(4020)\\to h_c+\\pi$. $Z_c(4020)$ seems to be a molecular sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.03575","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"}