{"paper":{"title":"$K^{\\star}(892)^{0}$ Production in Relativistic Heavy Ion Collisions at $\\sqrt{s_{_{NN}}}=130$ GeV","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"STAR Collaboration","submitted_at":"2002-05-22T20:09:01Z","abstract_excerpt":"We report the first observation of $K^{\\star}(892)^{0}\\to\\pi K$ in relativistic heavy ion collisions. The transverse momentum spectrum of $(K^{\\star0}+\\bar{K}^{\\star0})/2$ from central Au+Au collisions at $\\sqrt{s_{_{NN}}}=130$ GeV is presented. The ratios of the $K^{\\star0}$ yield derived from these data to the yields of negative hadrons, charged kaons, and $\\phi$ mesons have been measured in central and minimum bias collisions and compared with model predictions and comparable $e^{+}e^{-}$, $pp$, and $\\bar{p}p$ results. The data indicate no dramatic reduction of $K^{\\star0}$ production in re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0205015","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"}