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A new empirical regularity for multiplicity distributions in place of KNO scaling

par Alner, G. J.;Wilquet, Gaston ; [et al.]
Référence Physics letters. Section B, 160, page (199-206)
Publication Publié, 1985

Article révisé par les pairs

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Résumé :

Charged particle multiplicity distributions for the inelastic, non-single-diffractive component of pp reactions at 540 GeV CMS energy and of pp reactions above about 10 GeV are shown to be remarkably well described by a negative binomial distribution at each energy. The two parameters of the distribution depend on energy in a regular manner, which affords the possibility of predicting multiplicity distributions at high energies not yet experimentally available. In this description there is a complete absence of any tendency to approach asymptotic KNO scaling below 540 GeV. The approximate scaling in the CM energy range 10-62 GeV is shown, in this framework, to be accidental. © 1985.