Lepton $g-2$ and $W$-boson mass anomalies in the DFSZ axion model

TL;DR

This paper investigates the DFSZ axion model's ability to simultaneously explain the muon and electron g-2 anomalies and the W-boson mass excess, aligning theoretical predictions with experimental constraints.

Contribution

It demonstrates that the DFSZ axion model can account for the lepton g-2 anomalies and W-boson mass excess within electroweak-scale Higgs spectra and testable collider mass ranges.

Findings

Muon and electron g-2 anomalies explained within the model.

W-boson mass excess addressed in the model.

Heavy neutrinos can produce a negative electron g-2.

Abstract

With regard to the leptonic magnetic dipole moment anomaly as well as the $W$-boson mass excess, we study the DFSZ axion model. Considering theoretical and experimental constraints, we show that the muon and electron $g-2$ anomalies can be explained within the parameter space of the model for extra Higgs bosons with mass spectra around the electroweak scale and for an almost equivalent contribution of one- and two-loop diagrams. A negative electron $g-2$ could be achieved by introducing heavy neutrinos. Furthermore, the $W$ boson mass excess can be consistently addressed within the mass range of the matter content testable at collider experiments.