Related paper Forward-backward multiplicity correlations in pp collisions at $\sqrt{s}$=0.9, 2.76 and 7 TeV Correlation strength $b_{corr}$ for separated $\eta$-$\varphi$ window pairs at$\sqrt{s}=7$ TeV as a function of $\eta$ separation. The legend is the same as for Fig.\,???. [png] [pdf]