Global Observables at RHIC
Peter Steinberg
Abstract
The first three measurements from the RHIC program were results on global observables: charged particle multiplicity (Nch), transverse energy (ET) and elliptic flow (v2). They offer a look at the large-scale features of particle production in high-energy nuclear collisions, with particular insight into entropy production and collective behavior. Results from all of the RHIC experiments are discussed in light of data from lower energy nuclear collisions as well as from high-energy hadronic collisions to test our current understanding of the collision dynamics.
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