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Results from electric charge correlations studied with the Balance Functionmethod in A+A collisions from 20\emph{A} to 158\emph{A} GeV are presented intwo different rapidity intervals: In the mid-rapidity region we observe adecrease of the width of the Balance Function distribution with increasingcentrality of the collision, whereas this effect vanishes in the forwardrapidity region.  Results from the energy dependence study in central Pb+Pb collisions showthat the narrowing of the Balance Function expressed by the normalised widthparameter \textit{W} increases with energy towards the highest SPS and RHICenergies.  Finally we compare our experimental data points with predictions of severalmodels. The hadronic string models UrQMD and HIJING do not reproduce theobserved narrowing of the Balance Function. However, AMPT which contains aquark-parton transport phase before hadronization can reproduce the narrowingof the BF's width with centrality. This confirms the proposed sensitivity ofthe Balance Function analysis to the time of hadronization.

Rapidity and energy dependence of the electric charge correlations in A+A collisions at the SPS energies