# Predictions for azimuthal anisotropy in Xe+Xe collisions at $\sqrt{{s}_{NN}}=5.44$ TeV using a multiphase transport model

Tripathy, Sushanta (Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, Simrol, Indore 453552, India) ; De, Sudipan (Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, Simrol, Indore 453552, India) ; Younus, Mohammed (Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, Simrol, Indore 453552, India) ; Sahoo, Raghunath (Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, Simrol, Indore 453552, India)

10 December 2018

Abstract: Xe+Xe collision at relativistic energies may provide us with a partonic system whose size is approximately in between those produced by $p+p$ and Pb+Pb collisions. The experimental results on anisotropic flow in Xe+Xe and Pb+Pb collisions should provide us with an opportunity to study the system size dependence of ${v}_{2}$. In the present work, we have used a multiphase transport model to calculate charged particles' ${v}_{2}$ for Xe+Xe collisions at $\sqrt{{s}_{NN}}=5.44\phantom{\rule{0.16em}{0ex}}\mathrm{TeV}$. We have also tried to demonstrate the number of constituent quark, ${N}_{q}$, and ${m}_{T}$ scaling of the elliptic flow. We find that ${n}_{q}$ scaling of ${v}_{2}$ is not observed for the identified hadrons. The ${v}_{2}$ results from Xe+Xe collisions have also been compared to Pb+Pb collisions at $\sqrt{{s}_{NN}}=5.02\phantom{\rule{0.16em}{0ex}}\phantom{\rule{4pt}{0ex}}\mathrm{TeV}$. We find that flow of charged particles in (50–60)% central collisions for xenon nuclei is almost 30% less than particle flow developed in lead ion collisions, implying the important role the system size plays in the development of particle collective motion in relativistic heavy ion collisions.

Published in: Physical Review C 98 (2018)