The negative binomial distribution in quark jets with fixed flavour

1996/09/10 by Alberto Giovannini, A Giovannini, Sergio Lupia +3 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0370-2693(96)01315-9

published as Phys.Lett.B388:639-647,1996 · LaTeX, 15 pages including 4 Postscript figures, uses epsfig.sty and rotating.sty

arxiv created 1996/09/10 · openalex publication_date 1996/11/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We show that both the multiplicity distribution and the ratio of factorial cumulants over factorial moments for 2-jet events in e+e- annihilation at the Z⁰ peak can be well reproduced by the weighted superposition of two negative binomial distributions, associated to the contribution of b b and light flavoured events respectively. The negative binomial distribution is then suggested to describe the multiplicity distribution of 2-jet events with fixed flavour.

Citations

• Common origin of the shoulder in multiplicity distributions and of oscillations in the factorial cumulants to factorial moments ratio

Cited by

• Hadron multiplicities