Identified Charged Particles in Quark and Gluon Jets

Details Identified Charged Particles in Quark and Gluon Jets Identified Charged Particles in Quark and Gluon Jets

2001-06-15

arxiv.org/abs/hep-ex/0106063v1

Eur.Phys.J.C17:207-222,2000

Physics

High Energy Physics

High Energy Physics - Experiment

24 pages, 12 figures

Scientific paper

10.1007/s100520000449

A sample of 2.2 million hadronic Z decays, selected from the data recorded by the Delphi detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of pi+, K+ and p and their antiparticles in gluon and quark jets. The production spectra of the individual identified particles were found to be softer in gluon jets compared to quark jets, with a higher multiplicity in gluon jets as observed for inclusive charged particles. A significant proton enhancement in gluon jets is observed indicating that baryon production proceeds directly from colour objects. The maxima, xi^*, of the xi-distributions for kaons in gluon and quark jets are observed to be different.

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