A note on the anomalous magnetic moment of the muon

TL;DR

This paper discusses the discrepancy between experimental measurements and theoretical predictions of the muon's anomalous magnetic moment, emphasizing the need for better nonperturbative estimates and new data.

Contribution

It demonstrates that the current UV finite theory cannot explain the observed discrepancy, highlighting the importance of improved hadronic contribution estimates and future measurements.

Findings

Current theory cannot resolve the discrepancy

Nonperturbative hadronic contributions are crucial

Future measurements are needed

Abstract

The anomalous magnetic moment of the muon is an important observable that tests radiative corrections of all three observed local gauge forces: electromagnetic, weak and strong interactions. High precision measurements reveal some discrepancy with the most accurate theoretical evaluations of the anomalous magnetic moment. We show in this note that the UV finite theory cannot resolve this discrepancy. We believe that more reliable estimate of the nonperturbative hadronic contribution and the new measurements can resolve the problem.