Figure 2

The balance function for charged particles with $0.2 < \pt_{,assoc}< \pt_{,trig}< 2.0$ Gev/$c$ as a function of $\deta$ on the near-side (upper row) and away-side (middle row) and $\dphi$ (lower row) indifferent multiplicity classes of Pb-Pb in panels (a), (d) and (g), p-Pb in panels (b), (e) and (h), and pp collisions in panels (c), (f) and (i) at $\sqrt{s_{\mathrm{NN}}} = 2.76$, 5.02, and 7 TeV, respectively.