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Particle number fluctuations and correlations in nucleus–nucleus collisions

V P Konchakovski et al 2009 J. Phys. G: Nucl. Part. Phys. 36 125106 (10pp)   doi: 10.1088/0954-3899/36/12/125106  Help

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V P Konchakovski1,2, M Hauer1, M I Gorenstein2,3 and E L Bratkovskaya4
1 Helmholtz Research School, University of Frankfurt, Frankfurt, Germany
2 Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine
3 Frankfurt Institute for Advanced Studies, Frankfurt, Germany
4 Institut für Theoretische Physik, Frankfurt, Germany
E-mail: voka@fias.uni-frankfurt.de

Abstract. Particle number fluctuations and correlations in nucleus–nucleus collisions at SPS and RHIC energies are studied within the statistical hadron-resonance gas model in different statistical ensembles and in the Hadron-String-Dynamics (HSD) transport approach. Event-by-event fluctuations of the proton to pion and kaon to proton number ratios are calculated in the HSD model for samples of the most central collision events and compared with the available experimental data. The role of the experimental acceptance and centrality selection is discussed.

Print publication: Issue 12 (December 2009)
Received 30 July 2009
Published 3 November 2009

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