Figure 6

The $p_{\rm{T}}$-differential ${v}_2$ for different particle species in (a), (b), (e), (f), measured with the scalar product method with a pseudo-rapidity gap $|\Delta\eta| > 0.9$ in Pb-Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV, compared to theoretical, hydrodynamic calculations coupled to a hadronic cascade model . The panels (c), (d), (g) and (h), show the dependence of the ratio of the experimental points to a fit over the theoretical calculations as a function of $p_{\rm{T}}$. The left and right plots present the comparison for the 10-20$\%$ and 40-50$\%$ centrality intervals, respectively. The low transverse momentum points for p+$\overline{\mathrm{p}}$ are out of scale in panels (c) and (d).