# Figure 5

 Coalescence parameters $B_2$ (left) and $B_3$ (right) measured in Pb--Pb collisions at $\mathbf{\sqrt{{\textit s}_{\rm NN}}} = 5.02$ TeV as a function of the transverse momentum scaled by the mass number of the nucleus. Each colour corresponds to a different centrality class. The boxes represent the systematic uncertainties, while the vertical lines are the statistical ones. See the text for details.