Top panels: average of $\Dzero$ and $\Dplus$ $v_2$ as a function of $\pt$ for $\PbPb$ collisions at $\sqrtsNN=5.02 \TeV$ in the small-$\qVZEROA$, large-$\qVZEROA$ (see text for details) and unbiased samples, in the 10--30\% (left) and 30--50\% (right) centrality classes. The charged-particle $v_2$ obtained at the same energy, centrality classes and ESE samples are superimposed for comparison. Bottom panels: ratios of the measured $v_2$ in the ESE-selected classes to the one obtained from the unbiased sample. | ![](https://alice-publications.web.cern.ch/sites/default/files/papers/4669/AverageDmesonV2AndRatio_vs_ChargedPartV2_1030_3050_PbPb_5TeV_ESE_q2V0A_WithUnb-96716.png ) |