Three-loop electroweak corrections to the W-boson mass and image in the large Higgs mass limit Original Research Article

We present an analytical calculation of the leading three-loop radiative correction to the S-parameter in the standard model in the large Higgs mass limit. Numerically, image. When combined with the corresponding three-loop correction to the ρ-parameter, this leads to shifts of image in the effective weak mixing angle and image in the W-boson mass. For both of these observables, the sign of the three-loop correction is equal to that of the one-loop correction.