Soft asymptotics with mass gap
High Energy Physics - Phenomenology
2014-05-21 v2
Abstract
From the operator product expansion the gluon condensate controls a certain power law correction to the ultraviolet behavior of the gauge theory. This is reflected by the asymptotic behavior of the effective gluon mass function as determined by its Schwinger-Dyson equation. We show that the current state of the art determination of the gluon mass function by Binosi, Ibanez and Papavassiliou points to a vanishing gluon condensate. If this is correct then the vacuum energy also vanishes in massless QCD. This result can be interpreted as a statement about a softness in the ultraviolet behavior and the consistency of this behavior with a mass gap.
Keywords
Cite
@article{arxiv.1308.6828,
title = {Soft asymptotics with mass gap},
author = {B. Holdom},
journal= {arXiv preprint arXiv:1308.6828},
year = {2014}
}
Comments
10 pages, 4 figures, improved discussion, version to appear in Physics Letters B