Properties of Factorial Cumulant to Factorial Moment Ratio
  It is shown that the ratio of factorial cumulant moments to factorial moments for a multiplicity distribution truncated in the tail reveals oscillations in sign similar to those observed in experimental data. It is suggested that this effect be taken into account in the analysis of data in order to obtain correct physical information on the multiplicity distributions. 
R. Ugoccioni, A. Giovannini and S. Lupia