Standard Model Predictions for the Muon $(g-2)/2$

TL;DR

This paper reviews the Standard Model predictions for the muon g-2, highlighting a reevaluation of hadronic contributions that results in a significant discrepancy with experimental measurements.

Contribution

It provides an updated Standard Model prediction for muon g-2 based on new data, emphasizing the persistent deviation from experimental results.

Findings

Standard Model prediction is over three standard deviations below experimental value

Reevaluation of hadronic contributions significantly impacts the theoretical prediction

Discrepancy suggests potential new physics beyond the Standard Model

Abstract

The current status of the Standard Model predictions for the muon anomalous magnetic moment is described. Various contributions expected in the Standard Model are discussed. After the reevaluation of the leading-order hadronic term based on the new \ep data, the theoretical prediction is more than three standard deviations lower than the experimental value.