Directed flow at RHIC from Lee-Yang zeroes

Details Directed flow at RHIC from Lee-Yang zeroes Directed flow at RHIC from Lee-Yang zeroes

2004-04-29

arxiv.org/abs/nucl-th/0404087v2

Nucl.Phys. A742 (2004) 130-143

Physics

Nuclear Physics

Nuclear Theory

10 pages. Final version, to appear in Nucl. Phys. A

Scientific paper

10.1016/j.nuclphysa.2004.06.015

Directed flow in ultrarelativistic nucleus-nucleus collisions is analyzed using the reaction plane from elliptic flow, which reduces the bias from nonflow effects. We combine this method with the determination of elliptic flow from Lee-Yang zeroes. The resulting method is more consistent and somewhat easier to implement than the previously used method based on three-particle cumulants, and is also less biased by nonflow correlations. Error terms from residual nonflow correlations are carefully estimated, as well as statistical errors. We discuss the application of the method at RHIC and LHC.

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