Abstract
The experimental data on multiplicity distributions in πp interactions are compared with multi-Regge model (MRM) predictions. It is shown that the versions of MRM with a single pole as the leading singularity do not describe the experimental data correctly. In most cases the high multiplicity tail is underestimated by the model. This may mean that some additional mechanism is present at low two-particle “sub-energies”. In such a case the use of energy-independent isospin factors seems unjustified.
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