论文标题
将SMEFT适合工作
Putting SMEFT Fits to Work
论文作者
论文摘要
标准模型有效场理论（SMEFT）提供了一个一致的框架，用于将LHC的精确测量与标准模型进行比较。观察到统计学上显着的非零SMEFT系数将与某种标准模型（BSM）之外的物理相对应。一个更难回答的问题是，可以从这些测量值中获得有关基础高规模模型性质的详细信息。在这项工作中，我们考虑了五个示例模型中存在的SMEFT运算符的模式，并讨论了使用全局拟合来得出BSM结论中固有的假设。我们发现，包括重新归一化组效应对结果的解释有重大影响。作为我们研究的副产品，我们在华沙基础上提出了对SMEFT系数的上日拟合，其中包括SMEFT理论中的一些近代领先的QCD校正。
The Standard Model Effective Field Theory (SMEFT) provides a consistent framework for comparing precision measurements at the LHC to the Standard Model. The observation of statistically significant non-zero SMEFT coefficients would correspond to physics beyond the Standard Model (BSM) of some sort. A more difficult question to answer is what, if any, detailed information about the nature of the underlying high scale model can be obtained from these measurements. In this work, we consider the patterns of SMEFT operators present in five example models and discuss the assumptions inherent in using global fits to make BSM conclusions. We find that including renormalization group effects has a significant impact on the interpretation of the results. As a by-product of our study, we present an up-dated global fit to SMEFT coefficients in the Warsaw basis including some next-to-leading order QCD corrections in the SMEFT theory.
