SOME GENERAL-CHARACTERISTICS OF SI-28-EMULSION INTERACTIONS AT 4.5 GEV C PER NUCLEON/

We present our observations on the salient features of the interaction s produced by Si-28 nuclei of 4.5 GeV/c per nucleon in photographic em ulsions. The results on the inelastic mean-free path and interaction c ross section are presented and compared with the predictions of a geom etrical model. Measurements on the multiplicity distribution, mean mul tiplicities, multiplicity correlations and multiplicity scaling of cha rged secondary particles are studied. A comparison with other availabl e data at same/nearby incident momentum per nucleon from proton-nucleu s and carbon-nucleus collisions is presented in order to examine the d ependence on the projectile mass.