Renormalons and 1/Q^2 Corrections
High Energy Physics - Phenomenology
2009-10-30 v1
Abstract
We argue that the appearance of the Landau pole in the running coupling of QCD introduces 1/Q^2 power corrections in current correlation functions. These terms are not accounted for by the standard operator product expansion and is the price to be paid for the lack of a unique definition of the running coupling at the 1/Q^2 level. We review also possible phenomenological implications of the 1/Q^2 terms in an alternative language of the ultraviolet renormalon.
Keywords
Cite
@article{arxiv.hep-ph/9705318,
title = {Renormalons and 1/Q^2 Corrections},
author = {R. Akhoury and V. I. Zakharov},
journal= {arXiv preprint arXiv:hep-ph/9705318},
year = {2009}
}
Comments
7 pages, LaTeX