CDF Measurement of $M_W$: Theory implications

TL;DR

The paper discusses the implications of the CDF measurement of the W boson mass, exploring how it challenges the Standard Model and examining potential extensions like Higgs-sector models and supersymmetry to accommodate the new data.

Contribution

It provides a review of how the recent CDF $M_W$ measurement impacts the Standard Model and various beyond Standard Model theories, highlighting phenomenological consequences.

Findings

CDF $M_W$ measurement deviates significantly from SM prediction

Compatibility of $M_W$ with light Higgs excesses at 95 GeV analyzed

Implications for MSSM and $(g-2)_$ discussed

Abstract

The CDF collaboration recently reported a measurement of the $W$-bosos mass, $M_W$, showing a large positive deviation from the Standard Model (SM) prediction. The question arises whether extensions of the SM exist that can accommodate such large values, and what further phenomenological consequences arise from this. We give a brief review of the implications of the new CDF measurement on the SM, as well as on Higgs-sector extensions. In particular, we review the compatibility of the $M_W$ measurement of CDF with excesses observed in the light Higgs-boson searches at $\sim 95$ GeV, as well as with the Minimal Supersymmetric Standard Model in conjunction with the anomalous magnetic moment of the muon, $(g-2)_\mu$.