QED-Induced Rapidity-Gap Events at the Z Peak
High Energy Physics - Phenomenology
2009-09-11 v1
Abstract
We study rapidity-gap events in annihilation at the Z boson peak initiated by the emission of a virtual photon. This mechanism is suppressed by the QED coupling constant, but it is enhanced due to a large propagator term from the virtual photon. For typical kinematics, we find a smaller event rate than analogous QCD type gap events. In the small jet-pair invariant mass limit, the QED type events follow a distribution in the jet-pair scattering angle, instead of the distribution of the QCD case.
Cite
@article{arxiv.hep-ph/9305296,
title = {QED-Induced Rapidity-Gap Events at the Z Peak},
author = {Hung Jung Lu and Stanley J. Brodsky and Valery A. Khoze},
journal= {arXiv preprint arXiv:hep-ph/9305296},
year = {2009}
}
Comments
13 pages, plain TeX (needs the PHYZZX macros), 4 figures in PostScript. SLAC-PUB-6116, DOE/ER/40762-009, U of Md. PP \#93-198