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Common origin of the shoulder structure and of the oscillations of moments in multiplicity distributions in e(+)e(-) annihilations

Alberto Giovannini·Sergio Lupia·Roberto Ugoccioni
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Abstract

We show, via a simple parametrization of the multiplicity distribution of charged particles in e(+)e(-) annihilation at the Z0 peak in terms of the weighted superposition of two negative binomial distributions, that both the shoulder structure in the intermediate multiplicity range and the oscillation in sign of the ratio of factorial cumulants over factorial moments of increasing order are related to hard gluon radiation.

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Alberto Giovannini, Sergio Lupia, Roberto Ugoccioni. 1996-09-19. Common origin of the shoulder structure and of the oscillations of moments in multiplicity distributions in e(+)e(-) annihilations. https://arxiv.org/abs/hep-ph/9609406

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