Impact of the Recent Measurements of the Top-Quark and W-Boson Masses on Electroweak Precision Fits

Abstract

We assess the impact of the very recent measurement of the top-quark mass by the CMS Collaboration on the fit of electroweak data in the standard model and beyond, with particular emphasis on the prediction for the mass of the W boson. We then compare this prediction with the average of the corresponding experimental measurements including the new measurement by the CDF Collaboration, and discuss its compatibility in the standard model, in new physics models with oblique corrections, and in the dimensionsix standard model effective field theory. Finally, we present the updated global fit to electroweak precision data in these models.