Exact relation of lattice and continuum parameters in three-dimensional SU(2)+Higgs theories

Abstract

The essential features of the high-temperature electroweak phase transition are contained in a three-dimensional super-renormalizable effective field theory. We calculate the exact counterterms needed for lattice simulations of the SU(2)-part of this theory. Scalar fields in both fundamental and adjoint representations are included. The three-dimensional U(1)+Higgs theory is also discussed.

Comments: 21 pages of Latex, whole ps-file including one figure added as uuencoded compressed postscript