Structure of the angular distributions of protons from complete nucleus disintegrations initiated by π--mesons at 40 GeV/c

π-12C-interactions at 40 GeV/c were selected using specific selection criteria relevant for the shock wave search in the nuclear matter. Angular distribution of protons from complete nucleus disintegration reveals distinct maximum near 60 deg. The distinct maximum near 60 deg is revealed in angular distribution of protons from π-12C-interactions accompanied by complete target nucleus disintegration. This maximum is particularly distinct if special criteria relevant for the shock wave search are used during the event selection. Momentum and angular characteristics of protons in π-12C interactions selected according to all criteria does not differ by analogous ones for all the rest events