Deconfining transition of SU(3) gauge theory onNt=4 and 6 lattices

We report the results of a Monte Carlo study of finite-temperature pure SU(3) gauge theory performed on the parallel computer QCDPAX. The deconfining transition is studied on ${12}^2$×24×4, ${24}^2$×36×4, ${24}^3$×6, and ${36}^2$×48×6 lattices with 480 000–1 112 000 iterations. A clear two-phase structure is observed on spatially large (${24}^2$×36×4 and ${36}^2$×48×6) lattices and the gaps of physical quantities at the transition are calculated on these lattices. The latent heat thus obtained on the ${\mathit{N}}_{\mathit{t}}$=6 (${36}^2$×48×6) lattice is much smaller than the one previously obtained.