Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-02-27
Phys.Lett.B374:231-237,1996
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 13 pages including 2 Postscript figures, uses epsfig.sty
Scientific paper
10.1016/0370-2693(96)00258-4
The shoulder structure of charged particles multiplicity distributions (MD's) in full phase space in $e^+e^-$ annihilation at the $Z_0$ peak and the quasi-oscillatory behavior of the ratio of factorial cumulants over factorial moments, $H_q$, as a function of the order $q$, are quantitatively reproduced within a simple parametrization of the MD in terms of a weighted superposition of two Negative Binomial Distributions, associated to two- and multi-jet production, i.e., to hard gluons radiation.
Giovannini Alberto
Lupia Sergio
Ugoccioni Roberto
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