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Energy, Rapidity and Transverse Momentum Dependence of Multiplicity Fluctuations in Heavy Ion Collisions at CERN SPS /// Energy and system size dependence of multiplicity fluctuations in nucleus-nucleus collisions at CERN SPS Energies

Benjamin Lungwitz
2008 Proceedings of Critical Point and Onset of Deconfinement - 4th International Workshop — PoS(CPOD07)   unpublished

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† deceased Multiplicity fluctuations in the forward hemisphere were studied for positively, negatively and all charged hadrons produced in central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV. The multiplicity distributions and their scaled variances are presented as a function of collision energy, rapidity and transverse momentum. The distributions have a bell-like shape and the scaled variance changes monotonously with energy in the range from 0.8 to 1.2. No indication of the critical
more » ... oint is observed. The string-hadronic model UrQMD reproduces results on the scaled variance. The predictions of the hadron-resonance gas model obtained within the grand-canonical and canonical ensembles for the scaled variance disagree with the data.
doi:10.22323/1.047.0023 fatcat:w63vptuomnb45av4mgl2drj5rm
Citation

Benjamin Lungwitz. "Energy, Rapidity and Transverse Momentum Dependence of Multiplicity Fluctuations in Heavy Ion Collisions at CERN SPS /// Energy and system size dependence of multiplicity fluctuations in nucleus-nucleus collisions at CERN SPS Energies." Proceedings of Critical Point and Onset of Deconfinement - 4th International Workshop — PoS(CPOD07) (2008)