{"paper":{"title":"Properties of $Z_c^{\\pm}(3900)$ produced in $p \\bar p$ collision","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"D0 Collaboration","submitted_at":"2019-05-31T16:31:23Z","abstract_excerpt":"We study the production of the exotic charged charmonium-like state $Z_c^{\\pm}(3900)$ in $p \\bar p$ collisions through the sequential process $\\psi(4260) \\rightarrow Z_c^{\\pm}(3900) \\pi^{\\mp}$, $Z_c^{\\pm}(3900) \\rightarrow J/\\psi \\pi^{\\pm}$. Using the subsample of candidates originating from semi-inclusive weak decays of $b$-flavored hadrons, we measure the invariant mass and natural width to be $M=3902.6^{+5.2}_{-5.0}{\\rm \\thinspace (stat)}^{+3.3}_{-1.4}{\\rm \\thinspace (syst)}$ MeV and $\\Gamma=32 ^{+28}_{-21}{\\rm \\thinspace (stat)} ^{+26}_{-7}{\\rm \\thinspace (syst)}$ MeV, respectively. We sea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.13704","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/1905.13704/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"}