Inelastic interactions of relativistic deuterons and α particles with nuclei and cascade model

Information is presented on the most general characteristics of inelastic interactions of deuterons and alpha particles at energies of several GeVs per nucleon with photoemulsion nuclei. The mean multiplicities are compared with calculations made by using the cascade model of nucleus-nucleus interactions. Data have been obtained on the mean multiplicities of various types of secondary particles, their correlation and angular distributions with respect to the number of interacting nucleons of an incident nucleus. It is shown that the multiplicities of the particles produced and recoil nucleons depend heavily on the number of interacting nucleons while the angular distributions of all types of secondary particles are independent on the variation in the number of the interacting nucleons of colliding nuclei. Single-particle distributions do not display the features to be expected in realization of the shock-wave type mechanism. Quantitative comparison with calculations by the cascade model reveals some differences with experimental data