Figure 5

The ratio $r_{AA} = \langle p_{T}^{2} \rangle_{AA} / \langle p_{T}^{2} \rangle_{pp}$ in the $p_{T}$ interval 0 - 10 GeV$/c$ for inclusive $\textrm{J}/\psi$ measured at mid-rapidity ($|y| < 0.8$) in centrality selected Pb-Pb collisions (filled circles) at $\sqrt{s_{NN}}$ = 2.76 TeV as a function of the number of participants $\langle N_{part} \rangle$. The uncorrelated systematic uncertainties (typeII) are depicted by the open boxes, while correlated uncertainty (type I) is shown as the filled box at unity Left panel: A comparison to results obtained by the PHENIX collaboration for Au-Au and Cu-Cu collisions at $\sqrt{s_{NN}}$ = 0.2 TeV (filled diamonds) and by the NA50 collaboration for Pb-Pb collisions at $\sqrt{s_{NN}}$ = 17.3 GeV (crosses). The PHENIX and NA50 $r_{AA}$ valuesare calculated in the $p_{T}$ interval 0 - 5 GeV$/c$ Right panel: $r_{AA}$ is compared to theory predictions by Zhou etal. and Zhao et al. for the $p_{T}$ interval 0 - 10 GeV$/c$.