N ov 2 00 4 1 π − Ξ correlations in Au - Au collisions at STAR
نویسنده
چکیده
We present π − Ξ correlation analysis in Au-Au collisions at sNN = 200 GeV and √ sNN = 62.4 GeV , performed using the STAR detector at RHIC. A Ξ (1530) resonance signal is observed for the first time in Au-Au collisions. Experimental data are compared with theoretical predictions. The strength of the Ξ peak is reproduced in the correlation function assuming that π and Ξ emerge from a system in collective expansion.
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