The collisions ofp,2H,4He and C with carbon and tantalum nuclei at 4.2 GeV/c per nucleon as well as the collisionsp-C andp-Ta at 10 GeV/c from 2-m propane bubble chamber have been studied. New results on nuclear stopping have been obtained from the examination of proton rapidity distributions and average rapidity of leading protons for collisions of various degree of centrality: our study points out that a proton projectile is fully stopped in the centralp-Ta collisions at 4.2 GeV/c but only partly stopped at 10 Gev/c. The proton multiplicity in the centralp-Ta collisions at 10 GeV/c can be described by the binomial distribution,P(n), which expresses the probability that the projectile meetsn protons among the nucleons being along the diameter of a target nucleus.
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The probability of deuteron formation resulting from the interaction of high energy protons with nucleons, light nuclei (CNO) and heavy nuclei (Ag, Br) is discussed. The proportionality of the identified deuterons and protons (produced at the same angle due to the same interaction) agrees with that of the Butler and Pearson model which owes the deuteron formation to the average nuclear interaction seen by the cascade nucleons within the nucleus and then the normal n-p interaction. The data are based on the momentum and angular distributions of the outgoing particles.
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