Figure 2

Average of $\Dzero$, $\Dplus$ and $\Dstar$ $v_2$ as a function of$\pt$ at $\sqrtsNN=5.02~\tev$, compared with the same measurement at $\sqrtsNN=2.76~\tev$~ and to the $\pi^\pm$ $v_2$ measured with the EP method~ and with the scalar production (SP) method~.
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