Figure 8

Ratios $v_n(p_\text{T})/v_m(p_\text{T})^{n/m}, \; n=3,4, \; m=2,3$ of inclusive charged particles for Pb--Pb collisions at $\sqrt{{\textit s}_\text{NN}} = 5.02$, in different centrality classes, measured with the scalar product method with respect to the V0A $Q$-vector. Dashed lines represent averages in $0.2 < p_\text{T} < 3$ GeV/$c$. The ratios are also shown for one hydrodynamic model in the four most central centrality intervals; it is qualitatively similar in the other centrality intervals and for the other models.