论文标题
Feynman-Ville的Singlet Night：真正的标量的一环匹配
Singlet night in Feynman-ville: one-loop matching of a real scalar
论文作者
论文摘要
提出了标准模型的真实单重量标量扩展的完整单循环匹配计算，以介绍了尺寸 - 六算子的标准模型有效场理论（SMEFT）。我们通过使用Feynman图与文献中通过通用的单环有效作用（UOLEA）方法和Feynman Colculus相结合而获得的分析结果与文献中得出的表达式进行了比较。在确定了现有计算中被忽略的贡献之后，我们发现纯图形方法和混合方法导致了相同的结果。我们突出显示了在SMEFT中计算单环匹配校正的一些微妙之处。
A complete one-loop matching calculation for real singlet scalar extensions of the Standard Model to the Standard Model effective field theory (SMEFT) of dimension-six operators is presented. We compare our analytic results obtained by using Feynman diagrams to the expressions derived in the literature by a combination of the universal one-loop effective action (UOLEA) approach and Feynman calculus. After identifying contributions that have been overlooked in the existing calculations, we find that the pure diagrammatic approach and the mixed method lead to identical results. We highlight some of the subtleties involved in computing one-loop matching corrections in SMEFT.
