Abstract
Abstract The covariant derivative expansion of the one-loop effective action is briefly reviewed, and applied to the problem of calculating the heavy Higgs effects in the standard Glashow-Weinberg-Salam model. All terms which grow with the Higgs mass M H at one loop are found. The result of this calculation is used to find the dependence of the gauge boson mass ratio ϱ on M H , and also to estimate the size of corrections to W and Z scattering theorems.
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