Bubble chain resummation and universality
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We propose a parameterization for contributions of an infinite set of diagrams (bubble chains) into physical observables represented as integrals of running coupling constant over the finite region in momentum space. The perturbation theory part of contributions is rendered well-defined by the principal value prescrition for treating the Landau pole while the rest is connected to the gluon condensate in case of observables allowing the OPE analysis. The hypothesis of universality, i.e. the use of our parameterization for non-OPE cases, is discussed.
Keywords
Cite
@article{arxiv.hep-ph/9512213,
title = {Bubble chain resummation and universality},
author = {N. V. Krasnikov and A. A. Pivovarov},
journal= {arXiv preprint arXiv:hep-ph/9512213},
year = {2007}
}
Comments
12 pages, Latex