Electroweak Parameters in the MS -Scheme
نویسنده
چکیده
We study electroweak parameters sensitive to the radiative corrections, such as ρratio and H → f f̄ decay rates in the MS-scheme in the heavy t-quark mass limit mt ≫ mw. In MS-scheme the two-loop electroweak corrections ∼ mt dominate over the QCD corrections ∼ αsmt in the ρ-ratio. The relation between the on-shell coupling constants and MS-parameters is found to be rather sensitive to the Higgs boson mass. † On leave from: Institute for Nuclear Research, Russian Academy of Sciences, Moscow 117312, Russia
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