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Scaling Features of Selected Observables at RHIC

Constantin Loizides
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Abstract

We discuss several observables measured by PHOBOS that show common scaling features in Cu+Cu and Au+Au collisions at RHIC energies. In particular, we examine the centrality and energy dependence of the charged particle multiplicity, as well as the centrality dependence of the elliptic flow at mid-rapidity. The discrepancy between Cu+Cu and Au+Au of the final state azimuthal asymmetry (elliptic flow), relative to the initial state geometry of the collision, can be resolved by accounting for fluctuations in the description of the initial geometry.

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Constantin Loizides. 2006-05-12. Scaling Features of Selected Observables at RHIC. https://arxiv.org/abs/nucl-ex/0605012

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