Suppressed pi^0 Production at Large Transverse Momentum in Central Au+Au Collisions at sqrt(s_NN) = 200 GeV

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dc.creatorPHENIX Collaboration
dc.creatorAdler, S. S.
dc.date2003-04-28
dc.date.accessioned2026-07-07T12:04:03Z
dc.date.available2026-07-07T12:04:03Z
dc.descriptionTransverse momentum spectra of neutral pions in the range 1 < p_T < 10 GeV/c have been measured at mid-rapidity by the PHENIX experiment at RHIC in Au+Au collisions at sqrt(s_NN) = 200 GeV. The pi^0 multiplicity in central reactions is significantly below the yields measured at the same sqrt(s_NN) in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is ~2.5 at p_T = 2 GeV/c and increases to ~4-5 at p_T ~= 4 GeV/c. At larger p_T, the suppression remains constant within errors. The deficit is already apparent in semi-peripheral reactions and increases smoothly with centrality.
dc.description326 authors, 6 pages text, RevTeX, 3 figures, 2 tables. Submitted to PRL. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
dc.identifierhttps://arxiv.org/abs/nucl-ex/0304022
dc.identifierhttp://arxiv.org/abs/nucl-ex/0304022
dc.identifierPhys.Rev.Lett.91:072301,2003
dc.identifierdoi:10.1103/PhysRevLett.91.072301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/208003
dc.subjectNuclear Experiment
dc.subjectHigh Energy Physics - Experiment
dc.titleSuppressed pi^0 Production at Large Transverse Momentum in Central Au+Au Collisions at sqrt(s_NN) = 200 GeV
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