Dimensional Reduction and Screening Masses in Pure Gauge Theories at Finite Temperature
Abstract
We studied screening masses in the equilibrium thermodynamics of SU(2) and SU(3) pure gauge theories on the lattice. At a temperature of 2 Tc we found strong evidence for dimensional reduction in the non-perturbative spectrum of screening masses. The dimensionally reduced theory is consistent with being a pure gauge theory in three dimensions. Near Tc we found extremely small scalar screening masses in both the theories. At the first order SU(3) phase transition we report the first measurement of the true scalar screening mass.Keywords
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