EWPD in the SMEFT to dimension eight
EWPD in the SMEFT to dimension eight
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DOI：
10.1007/jhep06(2021)076
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发表时间：
2021-02
影响因子：
5.4
通讯作者：
T. Corbett;Andreas Helset;Adam Martin;M. Trott
中科院分区：
文献类型：
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作者：
T. Corbett;Andreas Helset;Adam Martin;M. Trott
我们用标准模型有效场论（SMEFT）的几何公式计算了LEP电弱精密数据的修正。我们在简单易用的插值表中报告了我们的结果，该表首次允许将此数据集解释为八维。我们证明了这些以前未知的条款的影响，在一般的分析的情况下，在SMEFT，也在两个不同的模型匹配到第八维的情况下。忽略LEP观测量的这种八维修正在SMEFT研究中引入了理论误差。我们报告了一些初步的研究，定义这样的理论误差，明确地证明了以前未知的8维SMEFT校正LEP观测值的效果。
We calculate thecorrections to LEP electroweak precision data using the geometric formulation of the Standard Model Effective Field Theory (SMEFT). We report our results in simple-to-use interpolation tables that allow the interpretation of this data set to dimension eight for the first time. We demonstrate the impact of these previously unknown terms in the case of a general analysis in the SMEFT, and also in the cases of two distinct models matched to dimension eight. Neglecting such dimension-eight corrections to LEP observables introduces a theoretical error in SMEFT studies. We report some preliminary studies defining such a theory error, explicitly demonstrating the effect of previously unknown dimension-eight SMEFT corrections on LEP observables.