Multiplicity distribution in hadron-nucleus scattering

It is argued that the multiplicity distribution in hadron-nucleus scattering should obey universal Koba-Nielsen-Olesen scaling at each impact parameter. For the whole nucleus, scaling remains approximately valid, but universality breaks down. The model predicts that as A increases, the peak of the scaled multiplicity distribution shifts towards smaller values of n/n-bar, and the normalized dispersion and skewness increase. All these properties are in agreement with data.