We present plots of the pattern of particle formation in [special characters omitted] = 200 GeV Au+Au heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) using three different two-particle correlation measurements of number and transverse momentum as a function of relative azimuth, pseudorapidity and centrality. All three observables show the onset with increasing centrality of a near-side "ridge" of enhanced correlations in pseudorapidity. The plots of real data are compared to plots of simulations using RQMD data and data from a simple "cluster" model. RQMD (relativistic quantum molecular dynamics) program uses a transport theoretical model of hadron collisions. The "cluster" dataset is a simplistic cartoon of a decay event involving an invariant mass that receives a longitudinal and then transverse Lorentz boost. The effect of radial flow on clusters is shown with a radial boost applied both collectively and to individual clusters. We find that the kinematic effect of radial flow in simulated cluster data produces a near-side "ridge" similar to that seen in the data.
|Commitee:||Gavin, Sean, Pruneau, Claude, Sun, Tze-Chien|
|School:||Wayne State University|
|School Location:||United States -- Michigan|
|Source:||DAI-B 72/12, Dissertation Abstracts International|
|Keywords:||Heavy ion collisions, Quark gluon plasma, Relativistic Heavy Ion Collider, Two-particle correlations|
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