Plaquette expectation value and lattice free energy of three-dimensional SU(N) gauge theory
Abstract
Description
We use high precision lattice simulations to calculate the plaquette expectation value in three-dimensional SU(N) gauge theory for N=2,3,4,5,8. Using these results, we study the N-dependence of the first non-perturbative coefficient in the weak-coupling expansion of hot QCD. We demonstrate that, in the limit of large N, the functional form of the plaquette expectation value with ultraviolet divergences subtracted is 15.9(2)-44(2)/N^2.
14 pages, 6 figures. v2: references added; published version
14 pages, 6 figures. v2: references added; published version