arXiv:hep-ph/9604247·v1·High Energy Physics — Phenomenology

Moment Analysis of Multiplicity Distributions

A.Capella(1) · I.M.Dremin(2) · V.A.Nechitailo(2) · J.Tran Thanh Van(1) ( (1) Laboratoire de Physique Theorique et Hautes Energies, Universite Paris-Sud, Orsay, France (2) P.N.Lebedev Physical Institute, Moscow, Russia )

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Abstract

Moment analysis of global multiplicity distribution previously done for $e^{+} e^{-}$ and $hh$ processes is applied to $h A$ and $AA$ collisions. The oscillations of cumulants as functions of their rank are found in all the cases. Some phenomenological approaches and quark-gluon string models are confronted to experimental data. It has been shown that the analysis is a powerful tool for revealing the tiny features of the distributions, and its qualitative results in various processes are rather stable for different multiplicity cut-offs determined by experimental (or Monte-Carlo) statistics.

Comments: 12 pages, plain LaTeX, 9 figures (not included), 1 table, submitted to Zs.Phys.C