Pion-Xi correlations in Au-Au collisions at STAR

Details Pion-Xi correlations in Au-Au collisions at STAR Pion-Xi correlations in Au-Au collisions at STAR

2004-11-02

arxiv.org/abs/hep-ex/0411008v1

Nucl.Phys. A749 (2005) 283-286

Physics

High Energy Physics

High Energy Physics - Experiment

To appear in the proceedings of 18th Nuclear Physics Division Conference of the EPS (NPDC18),Prague, 23.8.-29.8. 2004

Scientific paper

We present pion-Xi correlation analysis in Au-Au collisions at sqrt(s_NN)= 200 GeV and sqrt(s_NN) = 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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