INTERACTIONS OF PROTONS WITH HEAVY EMULSION NUCLEI AT 20.8 GEV C/

Central collisions of 20.8-GeV/c protons with heavy emulsion nuclei ha ve been studied. The cross sections for production of leading DELTA + isobars were determined and compared with the Lund (Fritiof version) model. Data on the correlations between the multiplicities of strongly ionizing particles and the longitudinal and transverse momenta of the leading protons are described, as well as data on the "sea-gull" effe ct for the produced pions. The azimuthal asymmetry is found for the sh ower particles emitted in the forward hemisphere. It is shown the Lund model cannot describe all the experimental facts; possible sources of the observed inconsistencies are discussed.