Centrality dependence of high-$p_{\mathrm{T}}$ D meson suppression in Pb-Pb collisions at $\sqrt{s_{\mathrm{N}\mathrm{N}}}$ = 2.76 TeV

The nuclear modification factor, $R_{\mathrm{A}\mathrm{A}}$, of the prompt charmed mesons ${\mathrm{D}}^0$, ${\mathrm{D}}^{+}$ and ${\mathrm{D}}^{\ast +}$, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy $\sqrt{s_{\mathrm{N}\mathrm{N}}}=2.76$ TeV in two transverse momentum intervals, $5<p_{\rm T}<8$GeV\mathrm{/}$c$and$8<p_{\rm T}<16$GeV\mathrm{/}$c$, and in six collision centrality classes. The $R_{\mathrm{A}\mathrm{A}}$ shows a maximum suppression of a factor of 5-6 in the 10% most central collisions. The suppression and its centrality dependence are compatible within uncertainties with those of charged pions. A comparison with the $R_{\mathrm{A}\mathrm{A}}$ of non-prompt $\mathrm{J}\mathrm{/}\psi$ from B meson decays, measured by the CMS Collaboration, hints at a larger suppression of D mesons in the most central collisions.