Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful complementary information is provided by hyperon decay measurements. We summarize the relevant phenomenological models and the status of the searches in a comprehensive list of kaon and hyperon decay channels. We identify new search strategies for under-explored signatures, and demonstrate that the improved sensitivities from current and next-generation experiments could lead to a qualitative leap in the exploration of light dark sectors.

中文翻译：

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在 kaon 和 hyperon 工厂进行新的物理搜索

罕见的介子衰变是重物理学和轻物理学中最敏感的探测器之一。其中，使用 kaons 的新物理搜索受益于它们的小总衰减宽度和非常大的数据集的可用性。另一方面，超子衰变测量提供了有用的补充信息。我们在 kaon 和超子衰变通道的综合列表中总结了相关的现象学模型和搜索状态。我们为未充分探索的签名确定了新的搜索策略，并证明了当前和下一代实验提高的灵敏度可能会导致对光暗区域探索的质的飞跃。