Linear and non-linear flow modes of charged and identified particles in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=5.02 TeV with ALICE

Abstract

The higher order harmonic flow observables $v_n$ ($n>3$) and their non-linear responses to the initial state anisotropy have the strong potential to constrain shear and bulk viscosity to entropy ratios because of different sensitivities for various stages of heavy-ion collisions. The measurements of the flow coefficients and the non-linear coefficients up to the ninth and fifth harmonic, respectively, are presented in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02\mathrm{TeV}$ for charged hadrons. In addition, the results of $p_{\mathrm{T}}$-differential non-linear flow modes for ${\pi }^{\pm }$, ${\mathrm{K}}^{\pm }$, $\mathrm{p}+\bar{\mathrm{p}}$, ${\mathrm{K}}_s^0$, $\Lambda +{\bar{\Lambda }}_s^0$ and $\varphi$ are presented. The results are compared to the same measurements at 2.76 TeV and calculations from state of the art hydrodynamic models.

Proceedings of Quark Matter 2019, November 2019