Study of gluon fragmentation and colour octet neutralization in DELPHI

Details Study of gluon fragmentation and colour octet neutralization in DELPHI Study of gluon fragmentation and colour octet neutralization in DELPHI

2001-11-29

arxiv.org/abs/hep-ph/0111408v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 6 figures (in eps) talk given at XXXI International Symposium on Multiparticle Dynamics, Sep. 1-7, 2001, Datong China

Scientific paper

Using the full statistics of the DELPHI experiment at $\sqrt{s}=91 GeV$ 3-jet events are selected and gluon respectively quark jet enriched subsamples are defined. The leading systems of the two kinds of jets are determined using rapidity gaps. The sum of charges of the leading systems is studied. It is found that for gluon-jets there is a significant excess of leading systems with total charge zero when compared to Monte Carlo simulations with JETSET. The corresponding leading systems of quark-jets do not exhibit such an excess. The mass spectra of the leading systems with total charge zero are studied.

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