Observation of KNO Scaling in the Neutral Energy Spectra from alpha alpha and pp Collisions at ISR Energies

摘要

Neutral transverse energy spectra in pp and alpha alpha interactions are analyzed in terms of the Wounded Nucleon Model. Analysis of the alpha alpha spectrum by application of a multiple nucleon-nucleon collision mechanism is conveniently performed when a Gamma Distribution is used to represent the pp spectral shape. The Wounded Nucleon Model provides a reasonable description of the alpha alpha spectrum for the first 3 orders of magnitude, but completely fails to account for the slope of the high energy tail of the distribution. However, the pp and alpha alpha spectra can both be fit to the same Gamma Distribution when scaled by their respective mean values and thus exhibit KNO scaling. 28 refs., 8 figs. (ERA citation 11:055178)