Angular distributions of relativistic particles in inelastic proton-nucleus interactions at high energies

A systematic analysis of characteristics of angular distributions of relativistic particles is fulfilled for the incoherent proton-nucleus collisions in the region from 20 to 200 GeV. It is shown that the experimental data at the available accelerating energies do not agree with the EFC model, with models based on hypotheses of interactions with a ''tube'' of nuclear matter with high effective mass and using the particle production mechanism analogous to the hh collision, and with the parton models with dominating contribution from the ''fan'' diagrams