Within the Standard Model Effective Field Theory framework, with operators up to dimension 6, we perform a model-independent analysis of the lepton-flavour-violating processes involving tau leptons. Namely, we study hadronic tau decays and ℓ-τ conversion in nuclei, with ℓ = e, μ . Based on available experimental limits, we establish constraints on the Wilson coefficients of the operators contributing to these processes. Our work paves the way to extract the related information from Belle II and foreseen future experiments.

中文翻译：

---

核中强子 tau 衰变和 μ-τ 转换中的轻子风味违反

在标准模型有效场论框架内，算子高达 6 维，我们对涉及 tau 轻子的轻子风味违反过程进行了独立于模型的分析。也就是说，我们研究了核中的强子 tau 衰变和 ℓ-τ 转换，其中 ℓ = e, μ 。基于可用的实验限制，我们对参与这些过程的算子的威尔逊系数建立了约束。我们的工作为从 Belle II 中提取相关信息和预见未来的实验铺平了道路。