par Abreu, Pedro;Bertrand, Daniel 
;Bricman, Claude ; [et al.]
Référence Nuclear physics. B, 386, 2, page (471-492)
Publication Publié, 1992
;Bricman, Claude ; [et al.]Référence Nuclear physics. B, 386, 2, page (471-492)
Publication Publié, 1992
Article révisé par les pairs
| Résumé : | An analysis of the fluctuations in the phase space distribution of hadrons produced in the decay of 78829 Z0 has been carried out, using the method of factorial moments. The high statistics collected by the DELPHI experiment at LEP during 1990 allowed studies of the event sample both globally and in intervals of ρt and multiplicity, and for different jet topologies and for single jets. A large contribution to the factorial moments of the one-dimensional data on rapidity with respect to the event axis comes from hard gluons. Details of factorial moments in two and three dimensions are presented. Influences of resonance decays have been studied by Monte Carlo simulation: one-dimensional factorial moments at low pt, and two-, three-dimensional analyses are affected. Parton shower models describe the data reasonably well. |
