J/$\psi$ elliptic flow in Pb-Pb Collisions at 5.02 TeV

Submission Date: 
15/09/2017
Article Information
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System: 
Pb-Pb
Energy: 
5.02 TeV
Abstract Plain Text: 
We report on the measurement of the inclusive J/$\psi$ elliptic flow in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector at LHC. 
The reconstruction is performed at mid-rapidity in the dielectron channel, and at forward rapidity in the dimuon one, both down to zero transverse momentum. The J/$\psi$ $v_{2}$ measurement in Pb-Pb collisions at  $\sqrt{s_{\rm NN}} = 5.02$ TeV benefits from largely increased statistics compared to previous measurements at $\sqrt{s_{\rm NN}} = 2.76$ TeV. In semi-central collisions the value reaches a significance higher than 7$\sigma$ for the rapidity range $2.5<y<4.0$ and transverse momentum $4 \leq p_{\rm T} < 6$~GeV/$c$. The elliptic flow is a determinant observable to address the question of suppression and regeneration of the J/$\psi$ in the quark gluon plasma.
The dependence of the J/$\psi$ $v_{2}$ with centrality, transverse momentum and rapidity will be presented.