{"paper":{"title":"Evidence for $Z_c^{\\pm}(3900)$ in semi-inclusive decays of $b$-flavored hadrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"D0 Collaboration","submitted_at":"2018-06-30T14:32:47Z","abstract_excerpt":"We present evidence for the exotic charged charmonium-like state $Z_c^{\\pm}(3900)$ in semi-inclusive weak decays of $b$-flavored hadrons. The signal is correlated with a $J/\\psi \\pi^+ \\pi^-$ system in the invariant mass range 4.2$-$4.7~GeV and includes the sequential process $b$-quark hadron $ \\rightarrow Y(4260) +$ anything, $Y(4260) \\rightarrow Z_c^{\\pm}(3900) \\pi^{\\mp}$, $Z_c^{\\pm}(3900) \\rightarrow J/\\psi \\pi^{\\pm}$. The study is based on $10.4~\\rm{fb^{-1}}$ of $p \\overline p $ collision data collected by the D0 experiment at the Fermilab Tevatron collider."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00183","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"}