English

QCD Power Corrections from a Simple Model for the Running Coupling

High Energy Physics - Phenomenology 2010-02-03 v1

Abstract

A simple parametrization of the QCD running coupling at low scales is introduced and used to illustrate various schemes for the estimation of non-perturbative power corrections. The `infrared matching' scheme proposed earlier gives satisfactory results when combined with next-to-leading (or higher) order perturbative predictions. Estimates based on renormalons are shown to be inconsistent with universal behaviour of the running coupling.

Keywords

Cite

@article{arxiv.hep-ph/9805484,
  title  = {QCD Power Corrections from a Simple Model for the Running Coupling},
  author = {B. R. Webber},
  journal= {arXiv preprint arXiv:hep-ph/9805484},
  year   = {2010}
}

Comments

11 pages, latex, 5 postscript figures, uses JHEP.cls

R2 v1 2026-07-22T14:43:59.301Z