Electroweak precision observables and Higgs-boson signal strengths in the Standard Model and beyond: present and future

TL;DR

This paper updates electroweak and Higgs boson measurements using LHC data, providing constraints on new physics and projecting future collider sensitivities.

Contribution

It extends traditional electroweak fits to include Higgs measurements and uses the HEPfit package for comprehensive analysis.

Findings

Constraints on new physics corrections to electroweak observables

Constraints on Higgs-boson couplings

Projected sensitivities for future colliders

Abstract

We present results from a state-of-the-art fit of electroweak precision observables and Higgs-boson signal-strength measurements performed using 7 and 8 TeV data from the Large Hadron Collider. Based on the HEPfit package, our study updates the traditional fit of electroweak precision observables and extends it to include Higgs-boson measurements. As a result we obtain constraints on new physics corrections to both electroweak observables and Higgs-boson couplings. We present the projected accuracy of the fit taking into account the expected sensitivities at future colliders.