Relative yield of inclusive \jpsi mesons as a function of relative charged-particle pseudorapidity density in comparison to D mesons (average of D$^0$, D$^+$, and D$^{*+}$ species), for the \pt interval 2-4 \gevc The error bars show the statistical uncertainties, the boxes the systematic ones (for the D mesons, additional systematic uncertainties due to the b feed-down contributions and the event normalisation are not shown) | ![](https://alice-publications.web.cern.ch/sites/default/files/papers/3443/Jpsi-Nch_comp_D-23471.png ) |