Forward-backward multiplicity correlation in e+e− collisions at 91 GeV and 133 GeV

Forward-backward charged multiplicity correlation for e+e− collisions at 91 GeV is analyzed without assuming a linear relation between the forward-backward multiplicity. The correlation function is sensitive to the specific form of the multiplicity distribution in the full phase space, and thus may help to discriminate among the various choices. Prediction is also made for e+e− collision at 133 GeV