Multiplicity fluctuations in relativistic nuclear collisions

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dc.creatorHauer, M.
dc.creatorBegun, V. V.
dc.creatorGazdzicki, M.
dc.creatorGorenstein, M. I.
dc.creatorKonchakovski, V. P.
dc.creatorLungwitz, B.
dc.date2007-09-05
dc.date.accessioned2026-07-07T11:19:07Z
dc.date.available2026-07-07T11:19:07Z
dc.descriptionMultiplicity distributions of hadrons produced in central nucleus-nucleus collisions are studied within the hadron-resonance gas model in the large volume limit. In the canonical ensemble conservation of three charges (baryon number, electric charge, and strangeness) is enforced. In addition, in the micro-canonical ensemble energy conservation is included. An analytical method is used to account for resonance decays. Multiplicity distributions and scaled variances for negatively charged hadrons are presented along the chemical freeze-out line of central Pb+Pb (Au+Au) collisions from SIS to LHC energies. Predictions obtained within different statistical ensembles are compared with preliminary NA49 experimental results on central Pb+Pb collisions in the SPS energy range. The measured fluctuations are significantly narrower than a Poisson reference distribution, and clearly favor expectations for the micro-canonical ensemble.
dc.description6 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0709.0665
dc.identifierhttp://arxiv.org/abs/0709.0665
dc.identifierJ.Phys.G35:044064,2008
dc.identifierdoi:10.1088/0954-3899/35/4/044064
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193573
dc.subjectNuclear Theory
dc.titleMultiplicity fluctuations in relativistic nuclear collisions
dc.typetext

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