Identified particle correlation studies in central Au + Au collisions at sqrt(S)= 200 GeV

Details Identified particle correlation studies in central Au + Au collisions at sqrt(S)= 200 GeV Identified particle correlation studies in central Au + Au collisions at sqrt(S)= 200 GeV

2005-02-14

arxiv.org/abs/nucl-ex/0502015v2

J.Phys. G31 (2005) S549-S556

Physics

Nuclear Physics

Nuclear Experiment

proceeding for HQ2004

Scientific paper

10.1088/0954-3899/31/4/066

We present correlations between strange baryons and mesons with charged hadrons in AuAu and pp collisions at sqrt(s)=200 GeV for different pT ranges and centralities. We observe that for central AuAu collisions, the large width of the back side correlations indicates a collapse of the jet structure. This is consistent with previous measurement of suppression of the back side correlation for unidentified charged hadrons. However, in the medium pT range the same side correlations show large AA/pp ratios and wek centrality dependencies which indicate different medium modification of the soft jet components. For different leading particle species we have found no significant difference for both same side and back side correlations. These results are comparable to PHENIX's measurements in similar pT range

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