Investigating the NCQ scaling of elliptic flow at LHC with a multiphase transport model

TL;DR

This study uses a multiphase transport model to analyze the NCQ scaling of elliptic flow at LHC energies, highlighting the importance of initial state parameters and hadronic rescattering effects.

Contribution

It demonstrates how initial state parameters and hadronic rescattering influence NCQ scaling of elliptic flow at LHC energies within a multiphase transport model.

Findings

NCQ scaling depends on initial state parameters and collision centrality.

Hadronic rescattering significantly affects elliptic flow.

Similar effects are observed at different LHC energies.

Abstract

The number of constituent quark (NCQ) scaling behavior of elliptic flow has been systematically studied at the LHC energy within the framework of a multiphase transport model (AMPT) in this work. We find that the parameters used to generate the initial states and the collision centrality are important for the existence of NCQ scaling even when hadronic rescattering contribution is off in Pb-Pb collisions of $\sqrt{s_{NN}}=2.76$ TeV. By turning on the hadron rescattering process, the hadronic evolution impacts are also found to be significant. Extending the analysis to Pb-Pb collsions of $\sqrt{s_{NN}}=5.02$ TeV, one would observe similar qualitative features.