Non-perturbative plaquette in 3d pure SU(3)
A. Hietanen, K. Kajantie, M. Laine, K. Rummukainen, Y. Schroder
TL;DR
This paper calculates the non-perturbative contribution to the gluon condensate in 3D SU(3) gauge theory and relates it to hot QCD pressure, bridging lattice results with continuum schemes.
Contribution
It provides the first non-perturbative estimate of the gluon condensate in 3D SU(3) and connects lattice results to continuum QCD for hot QCD pressure.
Findings
Determined the finite part of the gluon condensate in 3D SU(3).
Connected lattice regularization results to MSbar scheme.
Identified the first non-perturbative contribution in hot QCD pressure.
Abstract
We present a determination of the elementary plaquette and, after the subsequent ultraviolet subtractions, of the finite part of the gluon condensate, in lattice regularization in three-dimensional pure SU(3) gauge theory. Through a change of regularization scheme to MSbar and a matching back to full four-dimensional QCD, this result determines the first non-perturbative contribution in the weak-coupling expansion of hot QCD pressure.
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Taxonomy
TopicsAdvanced Algebra and Geometry