{"paper":{"title":"Radiative decays of the neutral $Z_c(3900)$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dian-Yong Chen, Yu-bing Dong","submitted_at":"2015-10-03T14:23:48Z","abstract_excerpt":"We study the radiative decays of the $Z_c(3900)^0$ in a hadronic molecule picture, where the $Z_c(3900)$ is treated as a $D \\bar{D}^\\ast +c.c$ hadronic molecule. The partial widths of $\\Gamma(Z_c(3900)^0 \\to \\gamma \\eta_c(2S))$ and $\\Gamma(Z_c(3900)^0 \\to \\gamma \\chi_{c0})$ are predicted to be of order 10 keV and the cross sections for $\\sigma(e^+ e^- \\to \\pi^0 Z_c(3900) \\to \\pi^0 \\gamma \\eta_c(2S))$ and $\\sigma(e^+ e^- \\to \\pi^0 Z_c(3900) \\to \\pi^0 \\gamma \\chi_{c0})$ are of order 0.1 pb at 4.23 GeV, which may be accessible for the BESIII and forthcoming BelleII."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00829","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"}