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Abstract

▪ Abstract 

This article reviews the standard-model prediction for the anomalous magnetic moment of the muon and describes recent updates of QED, electroweak, and hadronic contributions. Comparison of theory and experiment suggests a 2.4 σ difference if + hadrons data are used to evaluate the main hadronic effects, but a smaller discrepancy if hadronic τ decay data are employed. Implications of a deviation for “new physics” contributions, along with an outlook for future improvements in theory and experiment, are briefly discussed.

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/content/journals/10.1146/annurev.nucl.54.070103.181204
2004-12-08
2024-06-24
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  • Article Type: Review Article
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