Abstract
The impact of new physics associated with the Higgs sector on precision electroweak physics is examined. We assume that at low energies the degrees of freedom are those of the standard model with minimal particle content (i.e., three generations of quarks and leptons and one Higgs doublet), and that the new physics is very weakly coupled to the quarks and leptons. With these assumptions a general operator analysis reveals that the new physics leaves a characteristic signature in the pattern of corrections to the standard model's contribution to precision electroweak measurements.
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