Hadron multiplicity in semi-inclusive lepton-nucleon and lepton-nucleus scattering

Abstract

We discuss multi-hadron production in both inelastic neutrino-nucleon interactions in the current fragmentation region and neutrino-nucleus collisions in the target fragmentation region. Our analysis, carried out within the framework of the quark-gluon string model, is mainly focused on the difference between these two processes. We show that the Q 2 dependence of hadron multiplicity in the current and target fragmentation regions is indeed completely different. The study of inelastic v — A scattering in the target fragmentation region also provides new information on nuclear structure at small N — N distances. The results of the proposed approach are in satisfactory agreement with the data recently obtained at CERN by the NOMAD Collaboration. KeywordsFragmentation FunctionHadron MultiplicityFragmentation FunctionCurrent FragmentationDual Parton ModelThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.