论文标题
精密$ l_i \ rightarrowl_fγ$实验的简化Leptokark型号：$ O（α_sy^2）$更正的两环结构
Simplified leptoquark models for precision $l_i \rightarrow l_f γ$ experiments: two-loop structure of $O(α_S Y^2)$ corrections
论文作者
论文摘要
我们提出了简化的Leptoquark模型的框架：标准模型的简单扩展，该模型用作测试具有新的彩色自由度的瘦素相互作用的基准，例如在Leptoquark或Grand Unification模型中。作为该方案的第一个应用，我们通过计算Lepton-Photon顶点不变的两环辐射校正来分析精确的Lepton可观察物，这是由Lepton与新彩色自由度之间的Yukawa Itsportation产生的。结果详细介绍了所涉及的形式的明确表达式，改进了考虑的较高循环顺序的文献，并强调了在模型的参数空间中存在区域的存在，在模型的参数空间中，两环校正无法忽略。
We put forward the framework of simplified leptoquark models: simple extensions of the Standard Model that serve as benchmarks to test the interactions of leptons with new colored degrees of freedom considered, for instance, in leptoquark or grand unification models. As a first application of the scheme, we analyze the power of precision lepton observables by computing gauge invariant two-loop radiative corrections to the lepton-photon vertex, generated here by Yukawa interactions between the lepton and new colored degrees of freedom. The result, detailed in explicit expressions for the involved form factors, improves on the literature for the higher loop order considered and highlights the existence of regions in the parameter space of the model where two-loop corrections cannot be neglected.
