Event by Event Net Charge Fluctuations

Abstract

We present analyses of event-by-event dynamical net charge fluctuations measured in 130 and 200 GeV Au Au collisions with the STAR detector. The dynamical net charge fluctuations are evaluated using the ${\nu }_{+-,dyn}$ observable. Dynamical fluctuations measured in Au Au collisions at 130 and 200 GeV are finite, and exceed charge conservation limits. They deviate from a perfect 1/N scaling and provide an indication that the collision dynamics varies with collision centrality.

6 pages, 3 figures, Proc of 19th Nuclear Dynamics Conf at Breckenridge, Colorado, Feb 8-15, 2003

References in corpus (3)

• Methods for the Study of Particle Production Fluctuations
• Charged-particle pseudorapidity density distributions from Au+Au collisions at sqrt(sNN)=130 GeV
• Energy dependence of particle multiplicities in central Au+Au collisions

Cited by in corpus (5)

• Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations
• The Effect of Dynamical Parton Recombination on Event-by-Event Observables
• Boost Invariance and Multiplicity Dependence of the Charge Balance Functionin ${\pi }^{+}p$ and $K^{+}p$ Collisions at $\sqrt{s}=22$ GeV/c
• Neutral to charged kaon yield fluctuations in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76TeV
• Charge Fluctuations in $π^{+}\rp$ and $\rK^{+}\rp$ Collisions at 250 GeV/$c$