Results for $r_2(p_{\rm T}^{\rm a},p_{\rm T}^{\rm b})$ in p--Pb collisions at $\snn$ = 5.02 TeV as a function of transverse momentum (red points). The different panels display results for different $\pt^{\rm a}$ ranges. Statistical (systematic) uncertainties are represented by vertical bars (filled boxes). Calculations from AMPT with string melting and 3DGlauber+MUSIC+UrQMD are shown as textured and plain bands, respectively.