Dual parton model of inelasticpp-interactions and cascade breaking of string

A new cascade model of string breaking with 6 free parameters is constructed. The dual parton model of inelasticpp-collisions, which uses the supposed model of breaking of string, agrees well with the wide set of the experimental data at ISR energies, including the multiplicity, rapidity and transverse momentum distributions, the different correlations and the production cross sections of baryons, antibaryons, strange particles and resonances. For the fitted values of the free parameters, the scaling functions of the model of string breaking are similar to the hadron structure functions. The inability of the dual parton model to explain the rise of the average transverse momentum with multiplicity at the SPS collider energies is discussed.