Rapidity Gaps in Quark and Gluon Jets - a Perturbative Approach
Abstract
We derive the probability for rapidity gaps in a parton cascade and investigate the dual connection with hadronic final states. A good description of observations in e+e- annihilations is obtained by perturbative QCD calculations in MLLA using previously determined parameters (QCD scale \Lambda and k_T-cut-off Q_0) and applying the parton hadron duality picture. Further predictions are derived; especially, for gaps between jets at variable resolution we predict a strong variation of gap probabilities for small parameters y_{cut} -> 0 in the transition from jets to hadrons. Large gaps between partons correspond to large spatial separations of colour charges: a colour blanching mechanism by soft processes is suggested.
Keywords
Cite
@article{arxiv.hep-ph/9911240,
title = {Rapidity Gaps in Quark and Gluon Jets - a Perturbative Approach},
author = {Wolfgang Ochs and Tokuzo Shimada},
journal= {arXiv preprint arXiv:hep-ph/9911240},
year = {2007}
}
Comments
7 pages, 3 figs., to appear in Proc. XXIX Int. Symp. QCD & Multiparticle Production (ISMD99), Brown University, Providence, RI, USA, Aug. 1999