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arXiv · 2003.02022

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

Jasper Parkkila
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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 $π^\pm$, $\mathrm{K}^\pm$, $\mathrm{p}+\mathrm{\bar{p}}$, $\mathrm{K}_s^0$, $Λ+\barΛ_s^0$ and $ϕ$ are presented. The results are compared to the same measurements at 2.76 TeV and calculations from state of the art hydrodynamic models.

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Jasper Parkkila. 2020-03-04. 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. https://doi.org/10.1016/j.nuclphysa.2020.121959

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