Speaker
Description
Quarkonia are considered as excellent probes to understand the properties of the quark gluon plasma (QGP), which is expected to be created in heavy ion collisions. In particular, experimental results of azimuthal anisotropy for charmonium states are expected to provide crucial information on the dynamics of quarkonia as well as the QGP properties. In this presentation, we present a detailed study of the elliptic and triangular flow for charmonium states with the CMS experiment. The second-order ($v_{2}$) and third-order ($v_{3}$) Fourier coefficients for prompt and nonprompt J/$\psi$ are reported with high precision in PbPb collisions. In addition, we report the $v_{2}$ and $v_{3}$ values of prompt $\psi(2S)$ mesons for the first time in heavy ion collisions. The results are compared with related measurements of charmonium modification and discussed in terms of various quarkonium in-medium effects.
