Enhanced Nonperturbative Effects in Z Decays to Hadrons
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
We use soft collinear effective field theory (SCET) to study nonperturbative strong interaction effects in Z decays to hadronic final states that are enhanced in corners of phase space. These occur, for example, in the jet energy distribution for two jet events near E_J=M_Z/2, the thrust distribution near unity and the jet invariant mass distribution near zero. The extent to which such nonperturbative effects for different observables are related is discussed.
Keywords
Cite
@article{arxiv.hep-ph/0309278,
title = {Enhanced Nonperturbative Effects in Z Decays to Hadrons},
author = {Christian W. Bauer and Christopher Lee and Aneesh V. Manohar and Mark B. Wise},
journal= {arXiv preprint arXiv:hep-ph/0309278},
year = {2009}
}
Comments
17 pages. Paper reorganized, and more discussion and results included