Multiplicity Fluctuations in Au+Au Collisions at RHIC

Abstract

In the PHOBOS experiment, charged particles are measured in almost the full solid angle. This enables the study of fluctuations and correlations in the particle production over a very wide kinematic range. In this paper, we show results of a direct search for fluctuations identified by an unusual shape of the pseudorapidity distribution. In addition, we use analysis of correlations of the multiplicity in similar pseudorapidity bins, placed symmetrically in the forward and backward hemispheres, to test the hypothesis of production of particles in clusters.

arXiv commentpresented as a poster at the Quark Matter 2006 conference

References in corpus (7)

• The PHOBOS Perspective on Discoveries at RHIC
• The Search for the Quark-Gluon Plasma
• The significance of the fragmentation region in ultrarelativistic heavy ion collisions
• Charged-particle pseudorapidity density distributions from Au+Au collisions at sqrt(sNN)=130 GeV
• Forward-Backward Multiplicity Correlations in sqrt(s_NN) = 200 GeV Gold-Gold Collisions
• Particle Production at Very Low Transverse Momenta in Au+Au Collisions at s(NN)**1/2 = 200 GeV
• Correlations and Fluctuations over a Broad Range in Pseudorapidity using the PHOBOS Detector

Cited by in corpus (5)

• Eliminating $volume$ fluctuations in fixed-target heavy-ion experiments
• On dynamical net-charge fluctuations within a hadron resonance gas approach
• Search for Long-Range Correlations in Relativistic Heavy-Ion Collisions at SPS Energies
• Event-by-event multiplicity fluctuations and correlations in ring-like and jet like events in ${}^{197}$Au-AgBr collisions at 11.6A GeV/c
• Non-equilibrium Phase Transitions in Ultrarelativistic Nuclear Collisions