Universality of Nonperturbative Effects in Event Shapes
High Energy Physics - Phenomenology
2014-11-18 v1
Abstract
Nonperturbative effects in event shape distributions can be characterized by shape functions derived in the eikonal approximation or, equivalently, from soft-collinear effective theory. The use of energy flow operators and the boost invariance of the Wilson lines of soft gluons in the shape functions leads to a proof of universality for power corrections to the mean values of event shapes, without invoking the single gluon approximation.
Cite
@article{arxiv.hep-ph/0603066,
title = {Universality of Nonperturbative Effects in Event Shapes},
author = {Christopher Lee and George Sterman},
journal= {arXiv preprint arXiv:hep-ph/0603066},
year = {2014}
}
Comments
4 pages; to appear in the Proceedings of the FRIF Workshop on First Principles Non-Perturbative QCD of Hadron Jets (Paris, 12-14 January 2006); ReVTeX4, uses slac_one.rtx (included)