Figure 3

The three--particle correlator defined in Eq.2 as a function of (a) the transverse momentum difference, $|p_{{\rm t},\alpha}-p_{{\rm t},\beta}|$, (b)the average transverse momentum, $(p_{{\rm t},\alpha}+p_{{\rm t},\beta})/2$, and (c) the rapidity separation, $|\eta_{\alpha}-\eta_{\beta}|$, of the charged particle pair of same (closed symbols)and opposite (open symbols) sign.