Non-perturbative plaquette in 3d pure SU(3)
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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.
6 pages, 4 figures, talk presented at Lattice 2005 (Non-zero temperature and density)
6 pages, 4 figures, talk presented at Lattice 2005 (Non-zero temperature and density)