Related paper Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV Comparison of the mean Cherenkov angle values obtained by the three-Gaussian fitting procedure and those evaluated from the V$^0$s study for pions (left panel) and protons (right panel) in the most central $\pbpb$ collisions.[png] [pdf]