Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2004-03-11
Physics
High Energy Physics
High Energy Physics - Experiment
Scientific paper
We present azimuthal two particle correlations of high pt strange baryons and mesons with charged hadrons in Au+Au collisions at sqrt(s) =200 A GeV. We observe the suppression of the back to back correlations similar to the previous measurement of azimuthal correlations of unidentified charged hadrons in the central Au+Au collisions. The dependence of the suppression on the leading particle transverse momentum is presented. We find that Lambda and Anti-Lambda correlations with charged hadrons have different leading hadron pT dependencies for same side correlations, which could indicate different fragmentation functions for gluon and quark jets or non fragmentation mechanisms for particle production. In addition we show that the back-to-back correlation structure for charged hadron pairs with a high pT trigger (pT<8 GeV) is consistent with statistical momentum conservation, with no evidence of additional jet-like correlations. This is a summary of a poster presented at Quark Matter 2004.
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