Status of the global electroweak fit with Gfitter in the light of new precision measurements

TL;DR

This paper updates the global electroweak fit within the Standard Model using the latest precision measurements, providing refined predictions for key parameters and assessing their consistency with recent experimental data.

Contribution

It presents the most recent global electroweak fit incorporating new measurements and theoretical calculations, enhancing the precision of SM parameter predictions.

Findings

Refined predictions for the W and Higgs boson masses

Improved agreement between theory and recent measurements

Updated constraints on the effective weak mixing angle

Abstract

We present results from the global electroweak fit to precision measurements in the Standard Model (SM). The fit uses the latest theoretical calculations for observables on the $Z$ pole and the $W$ boson mass, yielding precise SM predictions for the effective weak mixing angle and the masses of the $W$ and Higgs bosons, as well as the top quark. We study the impact of the latest measurements on the fit and provide comparisons of the resulting predictions for individual observables with recent measurements.