Some peculiarities of characteristics of slow particles emitted from nonequilibrium residual nucleus at high energies of proton-nucleus interactions

New approach to the study of secondary particles behaviour, formed in proton inelastic interactions with photoemulsion nuclei, is used. Multiplicities and energy spectra are considered depending on spatial angle of departure (θ) in the laboratory coordinate system. Shifting of secondary slow particles energy spectra with low θ to lower energies as to similar distributions at high θ indicates severe deformation of nucleus-target, nucleus transparency for b-particles, emitted at low angles to interaction axis in central collisions. Data on energetic and angular spectra for b-particles two groups from peripheral collisions indicate this phenomenon as well. So the authoprs come to the conclusion about description impossibility of secondary slow particles departure by models, based on assumption of nucleon statistic equilibrium in the excited nucleus, and about the necessity to consider nucleus transparency by interaction axis