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 dimension-six Standard Model Effective Field Theory. Finally, we present the updated global fit to electroweak precision data in these models.

10 pages, 9 tables, 4 figures. v2: several misprints fixed, discussion expanded, individual predictions in the SM for all observables added, figures improved

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• Model-independent precision constraints on dimension-6 operators
• Electroweak two-loop corrections to the effective weak mixing angle
• The two-loop electroweak bosonic corrections to ${\sin }^2{\theta }_{\mathrm{eff}}^{\mathrm{b}}$
• Bosonic Corrections to The Effective Weak Mixing Angle at O(alpha^2)
• The effective electroweak mixing angle ${\sin }^2{\theta }_{eff}$ with two-loop bosonic contributions
• Mixed EW-QCD leading fermionic three-loop corrections at $\mathcal{O}({\alpha }_s{\alpha }^2)$ to electroweak precision observables

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