Separating perturbative and non-perturbative contributions to the plaquette
R. Horsley, P.E.L. Rakow, G. Schierholz
TL;DR
This paper investigates the separation of perturbative and non-perturbative effects in the SU(3) gauge theory plaquette by analyzing the asymptotic behavior of the perturbation series, challenging previous claims of certain condensate contributions.
Contribution
It introduces a method to estimate uncalculated series terms and provides new insights into the gluon condensate contributions in gauge theory.
Findings
No evidence for Lambda^2 contribution to gluon condensate.
Estimated Lambda^4 condensate around 0.03 GeV^4.
Large uncertainties in the condensate value.
Abstract
We try to separate the perturbative and non-perturbative contributions to the plaquette of pure SU(3) gauge theory. To do this we look at the large-n asymptotic behaviour of the perturbation series in order to estimate the contribution of the as-yet uncalculated terms in the series. We find no evidence for the previously reported Lambda^2 contribution to the gluon condensate. Attempting to determine the conventional Lambda^4 condensate gives a value of approximately 0.03(2) GeV^4, in reasonable agreement with sum rule estimates, though with very large uncertainties.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.