2003/12/04 by Wolfgang Ochs
Physics and Astronomy · #hep-ph
published as Acta Phys.Polon. B35 (2004) 429-432 · Presented at the XXXIII Int. Symp. on Multiparticle Dynamics, Krakow, Poland, 5-11 September 2003, 4 pages, 2 figs
arxiv created 2003/12/04 · arxiv updated 2009/12/01
Recently, the moments of multiplicity distributions in e+e- annihilation and the ratios Hq (cumulant over factorial moments Kq/Fq) 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 ycut. The recent explanation of this phenomenon based on perturbative QCD calculations is discussed.