Charmonium production in pp, p+Pb and Pb+Pb collisions with CMS experiment

We report the measurements of the prompt and non-prompt J/ψ and ψ(2S) nuclear modification factors (R _AA) using pp and PbPb data and the R_pPb using pPb data collected by CMS at the LHC. All measurements were performed via the dimuon decay channel. The R _AA analysis is based on PbPb and pp data samples collected at √s _NN = 5.02 TeV in 2015, corresponding to integrated luminosities of 464 μb⁻¹ and 28 pb⁻¹. These measurements are performed in the dimuon rapidity range of |y| < 2.4 as a function of centrality, rapidity, and transverse momentum (p _T) from p _T = 3GeV/c in the most forward region and up to 50 GeV/c. The R _pPb analysis based on pPb data, is performed for prompt J/ψ and ψ(2S) in different kinematic bins of p _T and rapidity. (paper)