Speaker
Description
One year ago, the CDF collaboration reported a new precision measurement of the $W$-boson mass $M_W$, exhibiting a large deviation from the value predicted by the Standard Model (SM).
In this talk, I will investigate possible new physics contributions to $M_W$ from extended Higgs sectors, focusing as a specific example on the Two-Higgs-Doublet Model (2HDM). Employing predictions for the electroweak precision observables in the 2HDM at the two-loop level and taking into account further theoretical and experimental constraints, I will identify regions of the 2HDM parameter space in which the prediction for $M_W$ is close to the new CDF value. I will additionally discuss the compatibility of these regions with precision measurements of the effective weak mixing angle and the total width of the $Z$ boson, as well as the impact and importance of the two-loop corrections to $M_W$.
