Elliptic and Triangular Flow of Identified Particles from the AMPT Model at RHIC Energies

TL;DR

This study uses the AMPT model to analyze elliptic and triangular flow of identified particles in Au+Au collisions at RHIC energies, reproducing experimental results and exploring the dependence on parton scattering cross section.

Contribution

It demonstrates that the AMPT model can accurately reproduce flow measurements at RHIC energies using specific parton scattering cross sections.

Findings

Experimental flow results are reproduced with 1.5-3 mb cross section.

The $v_{2}/v_{3}$ ratios are anti-correlated with the parton scattering cross section.

The model provides insights into the particle flow behavior at different energies.

Abstract

The elliptic flow ($v_{2}$) at $\sqrt{s_{\rm NN}} = $ 11.5, 39, and 200 GeV and triangular flow ($v_{3}$) at $\sqrt{s_{\rm NN}} = $ 200 GeV of identified particles ($\pi^{\pm}, K^{\pm}, K^{0}_{S}, p, \bar{p}, \phi, \Lambda$ and $\bar{\Lambda}$) from 0\%--80\% central Au+Au collisions are analyzed using a multiphase transport (AMPT) model. It is shown that the experimental results from the $\eta$-sub event plane method can be reproduced with a parton scattering cross section between 1.5 and 3 mb. We also studied the differential and integrated $v_{2}/v_{3}$ ratios and conclude that they are anti-corrected with the parton scattering cross section.