Left panel: collision centrality evolution of the longitudinal width of  number correlator $R_2^{\rm CD}$ and transverse momentum correlators $P_2^{\rm CD}$ and $G_2^{\rm CD}$. Central panel: idem for the azimuthal width of $R_2^{\rm CD}$, $P_2^{\rm CD}$ and $G_2^{\rm CD}$. Right panel: collision centrality evolution of the longitudinal width of $R_2^{\rm CI}$, $P_2^{\rm CI}$, and $G_2^{\rm CI}$. Data for $R_2$ and $P_2$ are from Two particle differential transverse momentum and number density correlations in p-Pb and Pb-Pb at the LHC.  Vertical bars and shaded  bands represent statistical and systematic uncertainties, respectively.