Oscillating Hadron and Jet Multiplicity Moments
Abstract
Description
Recently, the moments of multiplicity distributions in e+e- annihilation and the ratios H_q (cumulant over factorial moments K_q/F_q) have been determined both for the hadronic final state and for jets at variable resolution. These ratios show an oscillatory behaviour as function of q with strong dependence of the amplitude and length of oscillation on the jet resolution parameter y_{cut}. The recent explanation of this phenomenon based on perturbative QCD calculations is discussed.
Presented at the XXXIII Int. Symp. on Multiparticle Dynamics, Krakow, Poland, 5-11 September 2003, 4 pages, 2 figs
Presented at the XXXIII Int. Symp. on Multiparticle Dynamics, Krakow, Poland, 5-11 September 2003, 4 pages, 2 figs