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arXiv · 1602.02029

High order flow harmonics of identified hadrons in 2.76 A TeV Pb+Pb collisions

Hao-jie Xu·Zhuopeng Li·Huichao Song
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Abstract

Using iEBE-VISHNU hybrid model with the AMPT initial conditions, we study the higher order flow harmonics of identified hadrons in 2.76 A TeV Pb+Pb collisions. Comparison with the recent ALICE measurements at 20-30\% centrality shows that our calculations nicely describe the data below 2 GeV, especially for the $v_2$, $v_3$ and $v_4$ mass-orderings among pions, kaons and protons. We also extended the calculations to other centrality bins, which presents similar mass-ordering patterns for these flow harmonics as the ones observed at 20-30\% centrality. In the later part of this article, we explore the development of $v_n$ mass ordering/splitting during the hadronic evolution through the comparison runs from iEBE-VISHNU hybrid model and pure hydrodynamics with different decoupling temperatures.

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Hao-jie Xu, Zhuopeng Li, Huichao Song. 2016-02-05. High order flow harmonics of identified hadrons in 2.76 A TeV Pb+Pb collisions. https://doi.org/10.1103/physrevc.93.064905

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