Elliptic flow of prompt $D^0$ meson via multi-particle correlations in PbPb collisions at 5.02 TeV

Measurements of the flow harmonic $v_2$ of prompt $D^0$ and $\bar{D^0}$ mesons are presented via the hadronic decay channels $D^0$ $\rightarrow$ $K^-\pi^{+}$ and $\bar{D^0}$ $\rightarrow$ $K^+\pi^{-}$ PbPb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV per nucleon pair, using high statistics data sample collected by the CMS detector during the 2018 LHC Run. A four-particle cumulant technique is employed to measure $D^0$ $v_2$ for the first time in PbPb collisions. These results strength the evidence of collective phenonmena in large hadronic collision systems. Furthermore, the specific variation of the $v_2{\{4\}}/v_2{\{2\}}$ ratios with respect to transverse momentum and centrality, which are compared to some theoretical predictions, is also studied in the context of heavy flavor.