Event-by-event fluctuations in Mean pT and Mean eT in sqrt(sNN) = 130 GeV Au+Au Collisions
K. Adcox, PHENIX Collaboration
Abstract
Distributions of event-by-event fluctuations of the mean transverse momentum and mean transverse energy near mid-rapidity have been measured in Au+Au collisions at sqrt(sNN) = 130 GeV at RHIC. By comparing the distributions to what is expected for statistically independent particle emission, the magnitude of non-statistical fluctuations in mean transverse momentum is determined to be consistent with zero. Also, no significant non-random fluctuations in mean transverse energy are observed. By constructing a fluctuation model with two event classes that preserve the mean and variance of the semi-inclusive pT or eT spectra, we exclude a region of fluctuations in sqrt(sNN) = 130 GeV Au+Au collisions.
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