Standard Model Precision Electroweak Measurements at HL-LHC and Future Hadron Colliders

TL;DR

This paper assesses the projected uncertainties in electroweak parameter measurements at future hadron colliders, highlighting potential improvements in precision for key parameters like the W boson and top quark masses.

Contribution

It provides a detailed analysis of expected uncertainties and potential precision gains for electroweak measurements at HL-LHC and future colliders.

Findings

Measurement errors could be reduced by a factor of 2 to 3.

Future colliders will improve precision of $M_T$, $M_W$, and electroweak mixing angles.

Enhanced measurements will refine tests of the Standard Model.

Abstract

We investigate the uncertainties for current and future measurements of electroweak (EW) parameters at hadron colliders. These include the measurement of the mass of the top quark ($M_T$), the direct measurement of the mass of the W boson ($M_W^{direct}$), the measurement of the effective EW mixing angle $\sin^2\theta^{\rm lept}_{\rm eff}$(M$_Z$), and the measurement of the on-shell EW mixing angle $\sin^2\theta_{W}= 1- M_W^2/M_Z^2$ which is equivalent to an indirect measurement of the W mass ($M_W^{indirect}$). Reduction of a factor of 2 to 3 in the measurement errors is expected in the future.