Pion-Xi correlations in Au-Au collisions at STAR
Abstract
We present pion-Xi correlation analysis in Au-Au collisions at sqrt(sNN)= 200 GeV and sqrt(sNN) = 62.4 GeV, performed using the STAR detector at RHIC. A Xi*(1530) resonance signal is observed for the first time in Au-Au collisions. Experimental data are compared with theoretical predictions. The strength of the Xi* peak is reproduced in the correlation function assuming that pions and Xis emerge from a system in collective expansion.
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