Correlated Production of p and p^bar in Au+Au Collisions at sqrt(s_NN) = 200 GeV

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dc.creatorPHENIX Collaboration
dc.creatorAdare, A.
dc.date2006-11-13
dc.date.accessioned2026-07-07T12:00:02Z
dc.date.available2026-07-07T12:00:02Z
dc.descriptionCorrelations between p and pbar's at transverse momenta typical of enhanced baryon production in Au+Au collisions are reported. The PHENIX experiment measures same and opposite sign baryon pairs in Au+Au collisions at sqrt(s_NN) = 200 GeV. Correlated production of p and p^bar with the trigger particle from the range 2.5 < p_T < 4.0 GeV/c and the associated particle with 1.8 < p_T < 2.5 GeV/c is observed to be nearly independent of the centrality of the collisions. Same sign pairs show no correlation at any centrality. The conditional yield of mesons triggered by baryons (and anti-baryons) and mesons in the same pT range rises with increasing centrality, except for the most central collisions, where baryons show a significantly smaller number of associated mesons. These data are consistent with a picture in which hard scattered partons produce correlated p and p^bar in the p_T region of the baryon excess.
dc.description420 authors from 58 institutions, 21 pages,5 figures. Submitted to Physics Letters B. 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/0611016
dc.identifierhttp://arxiv.org/abs/nucl-ex/0611016
dc.identifierPhys.Lett.B649:359-369,2007
dc.identifierdoi:10.1016/j.physletb.2007.04.029
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206767
dc.subjectNuclear Experiment
dc.titleCorrelated Production of p and p^bar in Au+Au Collisions at sqrt(s_NN) = 200 GeV
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