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arXiv · 2503.03364

Muon $g-2$

Christine Davies
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Abstract

The story of the anomalous magnetic moment of the muon, $a_μ$, has been a long and absorbing read, with several unexpected plot twists. The theme: is new physics visible in $a_μ$ or not? is clearly an important one. As we head towards what may be the final chapters, the pace of the narrative has quickened and lattice QCD is providing a critical new perspective on some of the key characters. I will review the story so far, focussing on recent episodes but (spoiler alert) depending on your point of view, it may not be heading to a happy ending.

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Christine Davies. 2025-03-05. Muon $g-2$. https://arxiv.org/abs/2503.03364

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