Related paper Forward-backward multiplicity correlations in pp collisions at $\sqrt{s}$=0.9, 2.76 and 7 TeV Forward-backward correlation strength $b_{corr}$ as function of $\eta_{gap}$ and for different windows widths $\delta\eta$=0.2, 0.4, 0.6 and 0.8 in pp collisionsat $\sqrt{s}=0.9$, 2.76 and 7 TeV [png] [pdf]