Elliptic Flow Analysis at RHIC with the Lee-Yang Zeroes Method in a Relativistic Transport Approach
Xianglei Zhu, Marcus Bleicher, Horst Stoecker
Abstract
The Lee-Yang zeroes method is applied to study elliptic flow (v2) in Au+Au collisions at s=200A~GeV, with the UrQMD model. In this transport approach, the true event plane is known and both the nonflow effects and event-by-event v2 fluctuations exist. Although the low resolutions prohibit the application of the method for most central and peripheral collisions, the integral and differential elliptic flow from the Lee-Yang zeroes method agrees with the exact v2 values very well for semi-central collisions.
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