Cumulant to Factorial Moment Ratio and Multiplicity Data

Physics – High Energy Physics – High Energy Physics - Experiment

Scientific paper

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Submitted to Phys.Lett.B; Latex document, 11 pages, 4 PostScript figures appended. Preprint number FIAN/TD-15/93 also FNT/AE 9

Scientific paper

10.1016/0370-2693(94)00969-4

The ratio of cumulant to factorial moments of experimental multiplicity distributions has been calculated for $e^{+}e^{-}$ and $hh$ interactions in a wide range of energies. As a function of the rank it exhibits an initial steep decrease and a series of oscillations around zero. Those features cannot be reproduced by the Negative Binomial Distribution. A comparable behaviour is instead predicted in high-energy perturbative QCD. The presence of a qualitatively similar behaviour for different processes and in wide energy intervals suggests speaking of an approximate scaling of the cumulant to factorial moment ratio.

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