{"paper":{"title":"Study of D*(2010)+- Production in ep Collisions at HERA","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"ZEUS Collaboration","submitted_at":"1995-02-02T15:07:04Z","abstract_excerpt":"We report the first observation of charmed mesons with the ZEUS detector at HERA using the decay channel ${\\rm D}^{*+}\\rightarrow (\\Do \\rightarrow {\\rm K}^-\\pi^+)\\pi^+$ (+ c.c.). Clear signals in the mass difference $\\Delta M$=$M$(D$^*$)--$M$(D$^0)$ as well as in the $M(K\\pi)$ distribution at the D$^0$ mass are found. The $ep$ cross section for inclusive \\DSpm\\ production with $Q^2<4~\\GeV^2$ in the $\\gamma p$ centre-of-mass energy range $115 < W < 275$ \\GeV\\ has been determined to be $(32 \\pm 7^{+4}_{-7} )$ nb in the kinematic region \\mbox{\\{$p_T(\\DS)\\geq $ 1.7 \\,\\GeV, $|\\eta(\\DS)| < 1.5 $\\}}."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9502002","kind":"arxiv","version":1},"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"}