Speaker
Description
Charmonia are excellent probes of deconfinement in heavy-ion collisions. Due to different binding energies between J/$\psi$ and $\psi$(2S),the hot nuclear matter effects have different impact on the production yields of the ground and excited states. The measurements of the J/$\psi$ and $\psi$(2S) in the same collision system will give an insight to the charmonium production mechanisms in the heavy-ion collisions.
In this talk, I will review the recent charmonium measurements with ALICE, J/$\psi$ and $\psi$(2S), in Pb--Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV. The nuclear modification factors for inclusive as well as prompt and non-prompt J/$\psi$ will be shown as a functions of $\it{p}_{T}$ and centrality at midrapidity. The newly published results on $\psi$(2S) will also be presented. In addition, I will discuss the recently published results on J/$\psi$ polarization with respect to a quantization axis orthogonal to the event-plane.
Theory / experiment | Experiment |
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Group or collaboration name | ALICE Collaboration |