Chemical fluctuations in high-energy nuclear collisions

Abstract

Fluctuations of the chemical composition of the hadronic system produced in nuclear collisions are discussed using the $\Phi -$measure which has been earlier applied to study the transverse momentum fluctuations. The measure is expressed through the moments of the multiplicity distribution and then the properties of $\Phi$ are discussed within a few models of multiparticle production. A special attention is paid to the fluctuations in the equilibrium ideal quantum gas. The system of kaons and pions, which is particularly interesting from the experimental point of view, is discussed in detail.

8 pages, 4 figures, revised version to appear in Phys. Lett. B

References in corpus (4)

• Hadronic matter compressibility from event-by-event analysis of heavy-ion collisions
• Can Momentum Correlations Proof Kinetic Equilibration in Heavy Ion Collisions at 160 AGeV?
• Transverse momentum and energy correlations in the equilibrium system from high-energy nuclear collisions
• A Method to Study `Chemical' Fluctuations in Nucleus--Nucleus Collisions

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• Event by Event analysis of Maximum Pseudo-rapidity Gap Fluctuation in High energy Nucleus-nucleus Collisions
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• Influence of statistical fluctuations on $K/\pi$ ratios in relativistic heavy ion collisions