{"paper":{"title":"Centrality dependence of $p_{T}$ spectra for identified hadrons in Au+Au and Cu+Cu collisions at $\\sqrt{s_{NN}}= 200$ GeV","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"De-ming Wei, Feng-Lan Shao, Jun Song, Qu-bing Xie, Yun-Fei Wang","submitted_at":"2008-02-19T02:36:33Z","abstract_excerpt":"The centrality dependence of transverse momentum spectra for identified hadrons at midrapidity in Au+Au collisions at $\\sqrt{s_{NN}}= 200$ GeV is systematically studied in a quark combination model. The $\\mathrm{{p}_{T}}$ spectra of $\\pi^{\\pm}$, $K^{\\pm}$, $p(\\bar{p})$ and $\\Lambda(\\bar{\\Lambda})$ in different centrality bins and the nuclear modification factors ($R_{CP}$) for these hadrons are calculated. The centrality dependence of the average collective transverse velocity $<\\beta (r)>$ for the hot and dense quark matter is obtained in Au+Au collisions, and it is applied to a relative smal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.2579","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"}