Production of Secondary Charged Particles in ¹²C-Nucleus Reactions at 4.5 GeV per Nucleon

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The dependence of the normalized mean multiplicity, R_A and reduced multiplicity R_S on the enrgy of the projectile in the energy range -- (2--200)A GeV, has been investigated. Furthermore, the dependence of R_A and R_S on the mass of the projectile and target nucleus in 4.5A GeV ¹²C-nucleus interactions have also been studied. The variations of R_A and R_S are found to increase linearly with increasing value of the multiplicity of charged secondaries produced in 4.5A GeV/c ¹²C-nucleus collisions. The results reveal that the normalised and reduced multiplicities of relativistic charged particles depend strongly on the projectile mass. The results reveal that the nature of the dependence of R_A on various parameters are identical with those obtained in high energy hadron-nucleus interactions. Finally, the values of the normalised moments of the multiplicity distributions of charged shower particles for different groups of emulsion nuclei were found to be nearly the same.