Abstract In view of the current 3–4 σ deviation between theoretical and experimental values for the muon’s anomalous magnetic moment, we review the ongoing efforts in constraining the hadronic light-by-light contribution to a μ by using dispersive techniques combined with a dedicated experimental program to obtain the required hadronic input.

中文翻译：

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强子逐光对μ子异常磁矩的贡献

摘要 鉴于当前 μ 子异常磁矩的理论值和实验值之间存在 3-4 σ 偏差，我们回顾了通过使用色散技术结合专用实验来限制强子逐光贡献对 μ 的持续努力。程序以获得所需的强子输入。