67 research outputs found

    Pion-Xi correlations in Au-Au collisions at STAR

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    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.Comment: To appear in the proceedings of 18th Nuclear Physics Division Conference of the EPS (NPDC18),Prague, 23.8.-29.8. 200

    Inclusive pi0 spectra at high transverse momentum in d-Au collisions at RHIC

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    Preliminary results on inclusive neutral pion production in d-Au collisions at sqrt(s_NN) = 200 GeV in the pseudo-rapidity range 0<eta<1 are presented. The measurement is performed using the STAR Barrel Electromagnetic calorimeter (BEMC). In this paper, the analysis of the first BEMC hadron measurement is described and the results are compared with earlier RHIC findings. The pi0 invariant differential cross sections show good agreement with next-to-leading order (NLO) perturbative QCD calculations.Comment: 4 pages, 5 figures, 18th Nuclear Physics Division Conference of the EPS, Prague, submitted to Nucl. Phys.

    The STAR time projection chamber

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    The STAR time projection chamber

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    Elliptic flow in Au + Au collisions at sNN\sqrt{s_{NN}} = 130 GeV

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    Multiplicity distribution and spectra of negatively charged hadrons in Au+Au collisions at SNN\sqrt{S_{NN}}=130 GeV

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    Erratum: Midrapidity Antiproton-to-Proton Ratio from Au + Au Collisions at sNN\sqrt{s_{NN}} = 130 GeV [Phys.Rev.Lett.86,4778(2001)]

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