Update of the global electroweak fit and constraints on two-Higgs-doublet models

TL;DR

This paper updates the global electroweak fit with recent experimental data, testing the Standard Model's consistency and constraining two-Higgs-doublet models using combined electroweak, Higgs, and flavor physics measurements.

Contribution

It provides the latest electroweak fit results, incorporating new measurements and evaluating their implications for two-Higgs-doublet models.

Findings

Updated electroweak parameters and predictions

Constraints on two-Higgs-doublet model parameters

Tests of Standard Model consistency

Abstract

We present an update of the global fit of the Standard Model electroweak sector to latest experimental results. We include new kinematic top quark and $W$ boson mass measurements from the LHC, a $\sin^2\theta^{\ell}_{\mathrm{eff}}$ result from the Tevatron, and a new evaluation of the hadronic contribution to $\alpha(M_Z^2)$. We present tests of the internal consistency of the electroweak Standard Model and updated numerical predictions of key observables. The electroweak data combined with measurements of the Higgs boson coupling strengths and flavour physics observables are used to constrain parameters of two-Higgs-doublet models.