Study of pseudorapidity dependence of the anisotropic flow with ALICE at the LHC

TL;DR

This paper investigates how the anisotropic flow of charged particles varies with pseudorapidity in lead-lead collisions at the LHC, providing insights into the collision dynamics over a broad angular range.

Contribution

It presents the first comprehensive measurement of pseudorapidity dependence of anisotropic flow at the LHC, including comparisons with RHIC data and theoretical models.

Findings

Elliptic flow exhibits longitudinal scaling.

Results show good agreement with AMPT model predictions.

Data extends understanding of flow over |ta|<5.

Abstract

We report on the pseudo-rapidity dependence of the charged particle anisotropic flow in Pb-Pb collisions at 2.76 TeV. The measurement is done over a wide range of pseudo-rapidity, |\eta|<5 using the forward detectors of ALICE at the LHC. Results are obtained from two- and multi-particle correlation techniques with the latter being less sensitive to non-flow effects. Elliptic flow longitudinal scaling, comparison with RHIC data and AMPT model calculations for the LHC are discussed.