Particle Number Fluctuations and Correlations in Nucleus-Nucleus Collisions

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 the samples of most central collision events and compared with the available experimental data. The role of the experimental acceptance and centrality selection is discussed.

12 pages, 5 eps figures, submitted to Phys. Rev. C

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Cited by in corpus (7)

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• System size dependence of particle-ratio fluctuations in Pb+Pb collisions at 158$A$ GeV
• Multiplicity fluctuation and correlation of identified baryons in quark combination model
• New results on event-by-event ratio fluctuations in Pb+Pb collisions at CERN SPS energies
• Recent results on strangeness production from NA49
• $K/\pi$, $K/p$ and $p/\pi$ Ratio Fluctuations within the HSD Transport Approach
• Multiplicity fluctuation and correlation of mesons and baryons in ultra-relativistic heavy-ion collisions at LHC