Multiplicity distributions in nucleus-nucleus collisions at high energies

The average and the dispersion of multiplicity distributions in nucleus-nucleus collisions are calculated assuming that the inelastic collision of two nuclei is an incoherent composition of collisions of individual nucleons. The average multiplicity is assumed to be proportional to the number of “wounded nucleons” i.e. the nucleons which underwent at least one inelastic collision. For the sake of comparison the average and the dispersion of the number of collisions is also discussed. Our calculations indicate that in nucleus-nucleus collisions, the amplification of various characteristics of the nucleon-nucleon interaction is far grater than in hadron-nucleus collisions.

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