QCD effects and b - tagging at LEP

Abstract

We analyze the impact of using b-tagged samples in studying non-Abelian effects due to QCD in ee → 4jet events at √s = MZ0, using angular variable analyses and comparisons with ee → 3jetγ events. We find that QCD effects are largely enhanced in b-quark samples with respect to ‘unflavoured’ ones, where energyordering is used to distinguish between gluon and quark jets. We show that the b-quark mass influences the angular distributions significantly and should not be neglected. Work supported in part by Ministero dell’ Università e della Ricerca Scientifica. † E-mail: Stefano.Moretti@durham.ac.uk, tausk@vipmzw.physik.uni-mainz.de

2 Figures and Tables

Cite this paper

@inproceedings{Moretti1995QCDEA, title={QCD effects and b - tagging at LEP}, author={S. Moretti and J . B . Tausk}, year={1995} }