Mixed harmonic charge dependent azimuthal correlations in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV measured with the ALICE experiment at the LHC

TL;DR

This paper reports measurements of charge-dependent azimuthal correlations in Pb-Pb collisions at 2.76 TeV, providing insights into local parity violation effects and charge conservation during the collision evolution.

Contribution

It presents the first detailed measurement of mixed harmonic charge-dependent correlations at the LHC, analyzing their implications for QCD parity violation and collision dynamics.

Findings

Charge dependence observed in correlations

Implications for local parity violation

Insights into azimuthal flow and charge conservation

Abstract

Mixed harmonic charge dependent azimuthal correlations at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV were measured with the ALICE detector at the LHC. A clear charge dependence for a series of correlations is observed both via the multi-particle cumulant and the event plane methods. Implications from these measurements for the possible effects of the local parity violation in QCD and for models which incorporate the azimuthal anisotropic flow and the local charge conservation on the kinetic freeze-out surface are discussed.