The physics mechanisms of light and heavy flavor $v_2$ and mass ordering in AMPT

Abstract

A Multi-Phase Transport (AMPT) model has been shown to describe experimental data well, such as the bulk properties of particle spectra and elliptic anisotropy ($v_2$) in heavy ion collisions. Recent studies have shown that AMPT describes the $v_2$ data in small system collisions as well. In these proceedings, we first investigate the origin of the mass ordering of identified hadrons $v_2$ in heavy ion as well as small system collisions. We then study the production mechanism of the charm $v_2$ in light of the escape mechanism for the light quark $v_2$.

SQM2016 proceeding, 4 pages, 4 figures