Measurements of the azimuthal anisotropy of charmonia in PbPb collisions at $\sqrt{\mathrm{s_{NN}}}=5.02~\mathrm{TeV}$

The second-order ($v_{2}$) and third-order ($v_{3}$) Fourier coefficients describing the azimuthal anisotropy of prompt and nonprompt ${\mathrm{J}/\psi}$ and prompt $\psi(\mathrm{2S})$ mesons are measured in PbPb collisions at $\sqrt{\mathrm{s_{NN}}}=5.02~\mathrm{TeV}$. The analysis uses a dataset corresponding to an integrated luminosity of $1.6~\mathrm{nb}^{-1}$ recorded with the CMS detector in 2018. ${\mathrm{J}/\psi}$ and $\psi(\mathrm{2S})$ mesons are reconstructed using their dimuon decay channel. The $v_{2}$ and $v_{3}$ values are extracted using the scalar product method and studied as functions of meson transverse momentum and PbPb collision centrality. The measured $v_{2}$ values for the prompt ${\mathrm{J}/\psi}$ mesons are larger than of those of nonprompt ${\mathrm{J}/\psi}$ mesons. The study of azimuthal anisotropy for prompt $\psi(\mathrm{2S})$ mesons is reported for the first time, showing $v_{2}$ larger than that of ${\mathrm{J}/\psi}$ mesons.