Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2007-01-25
J.Phys.G34:S911-914,2007
Physics
Nuclear Physics
Nuclear Experiment
4 pages, 6 figures. Presented at the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, "Quark Ma
Scientific paper
10.1088/0954-3899/34/8/S124
Recent surveys of multiplicity fluctuations, transverse momentum fluctuations, and two-particle azimuthal correlations are presented for several collision systems as a function of centrality and transverse momentum. Both multiplicity and transverse momentum fluctuations exhibit a power law scaling as a function of the number of participants that is independent of the collision system. Although these observations are consistent with critical behavior, the critical exponent $\eta$ measured using azimuthal correlations is seen to be independent of centrality and collision system. Also observed in the azimuthal correlations is a displaced away side peak in central Au+Au collisions when the pairs are restricted to low transverse momentum.
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