{"paper":{"title":"Kaon and Pion Production in Central Au+Au Collisions at \\sqrt{s_{NN}}=62.4 GeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"BRAHMS Collaboration: I.C.Arsene, et al","submitted_at":"2009-11-13T10:47:33Z","abstract_excerpt":"Invariant pT spectra and rapidity densities covering a large rapidity range(-0.1 < y < 3.5) are presented for $\\pi^{\\pm}$ and $K^{\\pm}$ mesons from central Au+Au collisions at $\\sqrt{s_{NN}}$ = 62.4 GeV. The mid-rapidity yields of meson particles relative to their anti-particles are found to be close to unity ($\\pi^-/\\pi^+ \\sim 1$, $K^-/K^+ \\sim 0.85$) while the anti-proton to proton ratio is $\\bar{p}/p \\sim 0.49$. The rapidity dependence of the $\\pi^-/\\pi^+$ ratio is consistent with a small increase towards forward rapidities while the $K^-/K^+$ and $\\bar{p}/p$ ratios show a steep decrease to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.2586","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"}