Precision Observables in the MSSM: Status and Perspectives

TL;DR

This paper reviews the current theoretical predictions for electroweak precision observables in the MSSM, analyzing recent two-loop results and the sensitivity to the top-quark Yukawa coupling, with implications for future collider experiments.

Contribution

It provides an updated analysis of MSSM electroweak precision observables incorporating recent two-loop calculations and discusses the precision needed for future collider measurements.

Findings

Two-loop electroweak corrections significantly impact predictions.

Electroweak observables are highly sensitive to the top-quark Yukawa coupling.

Matching future experimental precision requires advanced theoretical calculations.

Abstract

The current status of the theoretical predictions for the electroweak precision observables M_W, sin^2_theta_eff and m_h within the MSSM is briefly reviewed. The impact of recent electroweak two-loop results to the quantity Delta_rho is analysed and the sensitivity of the electroweak precision observables to the top-quark Yukawa coupling is investigated. Furthermore the level of precision necessary to match the experimental accuracy at the next generation of colliders is discussed.