Angular Distribution of Particle Flows and Perturbative QCD Predictions
High Energy Physics - Phenomenology
2011-09-13 v2
Abstract
We discuss the predictions of perturbative QCD for angular flows of final state particles in two and three jet events including their cms energy and jet resolution (y_{cut}) dependence. The simple analytical formulae for gluon bremsstrahlung from primary partons, modified for gluon cascading, reproduce the main features of the experimental data well. For y_{cut}-selected events, the particle flow is derived from a superposition of colour dipoles in much the same way that photon radiation is derived from electric dipoles.
Cite
@article{arxiv.hep-ph/0212189,
title = {Angular Distribution of Particle Flows and Perturbative QCD Predictions},
author = {Matthew A. Buican and Valery A. Khoze and Wolfgang Ochs},
journal= {arXiv preprint arXiv:hep-ph/0212189},
year = {2011}
}
Comments
14 pages, 4 Figs., more details of calculation in sect. 2.1