Abstract
We present correlations between strange baryons and mesons with charged hadrons in Au+Au and p+p collisions at for different pT ranges and centralities. We observe that for central Au+Au collisions, the large width of the back side correlations indicates a collapse of the jet structure. This is consistent with the 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 weak centrality dependences 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 a similar pT range (Adler S S et al 2004 Preprint nucl-ex/0408007).
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