The leading effect explains the forward-backward multiplicity correlations in hadronic interactions

Abstract

The multiplicity correlations between forward and backward hemispheres observed since a long time in (pp) interactions at the CERN Intersecting Storage Rings (ISR), are shown to be due to the leading effect. These multiplicity correlations are reproduced following our method of classifying each (pp) interaction in terms of the effective hadronic energy available. It is this energy, and not the long-range correlation, which produces low or high multiplicities in both hemispheres of a (pp) collision. The (logs)-dependence of the correlation strength follows from the energy dependence of the multiplicity. The (logs)-dependence is shown to follow our prediction from FNAL and SPS, to ISR, and up to Collider energies.