Measurement of forward and backward mean charged-particle multiplicities in high-energy (pp) soft interactions and comparison with high-energy neutrino and antineutrino deep inelastic scattering

The difference between forward and backward mean charged-particle multiplicities is shown to exist also in (pp) interactions, when these are analysed in analogy with the deep inelastic scattering method. The measurements reported here show that this difference, which has been observed for a long time in (vp) and (vp) deep inelastic scattering experiments, is explained in terms of the omitted correction for the leading effect in the backward hemisphere.