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Excitation Function of and Net Charge Fluctuations at RHIC | | C. Pruneau
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15 Dec 2003 | | Subject: | nucl-ex | | Affiliation: | for the STAR Collaboration | | Abstract: | We present measurements of net charge and transverse momentum fluctuations in Au + Au collisions at ?sNN = 20, 130, and 200 GeV reported in our QM 2004 poster using measures ?+-,dyn and . We observe the dynamical fluctuations are finite at all three energies and exhibit a rather modest dependence on beam energy. We also find both net charge and pt fluctuations violate the trivial 1/N scaling expected for nuclear collisions consisting of independent nucleon-nucleon interactions. We speculate the observed centrality dependence arises due to radial flow and might provide insight on the width and shape of the radial flow profile. | | Source: | arXiv, nucl-ex/0401016 | | Services: | Forum | Review | PDF | Favorites | |
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