At the present time (2022), there are discrepancies with the predictions of the Standard Model in several observables involving b → sℓ+ℓ−and [Formula: see text] decays. These are the B flavor anomalies. In this review, we summarize the data as of Moriond 2021 and present theoretical new physics explanations from both a model-independent effective field theory point of view and through the building of explicit models. Throughout, we stress the complementarity of these two approaches. In addition, we discuss combined explanations of both B anomalies and present models that also explain other problems, such as dark matter, ( g − 2)μ, neutrino properties, and hadronic anomalies.

中文翻译：

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BF 风味异常：2021 年理论状态报告

目前（2022年），涉及 b → sℓ 的几个可观测量与标准模型的预测存在差异+ℓ-[公式：见正文] 衰减。这些是 B 味异常。在这篇综述中，我们总结了 Moriond 2021 的数据，并从独立于模型的有效场论的角度和通过构建显式模型提出了新的物理解释。自始至终，我们都强调这两种方法的互补性。此外，我们讨论了 B 异常的综合解释，并提出了也解释其他问题的模型，例如暗物质，( g − 2)μ、中微子特性和强子异常。