Directed flow at RHIC from Lee–Yang zeroes

2004/04/30 by Nicolas Borghini, N. Borghini, Jean-Yves Ollitrault +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th

paper · pdf · doi:10.1016/j.nuclphysa.2004.06.015

published as Nucl.Phys. A742 (2004) 130-143 · 10 pages. Final version, to appear in Nucl. Phys. A

openalex publication_date 2004/07/09 · arxiv created 2004/07/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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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