Abstract
Light technifermions and pseudo Goldstone bosons that contribute to the electroweak radiative correction parameters V, W, and X may relax the constraints on technicolor models from the experimental values of the parameters S and T. Order of magnitude estimates of the contributions to V, W, and X from light technileptons are made when the technineutrino has a small Dirac mass or a large Majorana mass. The contributions to V, W, and X from pseudo Goldstone bosons are calculated in a gauged chiral Lagrangian. Estimates of V, W, and X in one family technicolor models suggest that the upper bounds on S and T should be relaxed by between 0.1 and 1 depending upon the precise particle spectrum.
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