Low-energy effective field theory below the electroweak scale: matching at one loop
Low-energy effective field theory below the electroweak scale: matching at one loop
复制标题
电弱尺度以下的低能有效场论：单环匹配
DOI：
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复制
发表时间：
2019
影响因子：
5.4
通讯作者：
P. Stoffer
中科院分区：
文献类型：
--
作者：
W. Dekens;P. Stoffer
我们计算了标准模型有效场论和电弱尺度以下的低能有效场论之间的单环匹配，其中重规范玻色子、希格斯粒子和顶夸克被积分出来。导出了完整的匹配方程组，包括两种理论的功率计数中高达六维的效应。我们展示了一般风味结构的结果，包括 C P 偶数部分和 C P 奇数部分。匹配方程用标准模型有效场论的参数表达了低能理论中的质量、规范耦合以及偶极子、三胶子和四费米子算符的系数。使用动量插入，我们还获得了 C P 违反 theta 角的匹配。我们的结果为对标准模型之外的物理约束进行独立于模型的分析提供了一个要素。它们可用于单循环精度的固定顺序计算，并代表迈向系统性次领先对数分析的第一步。
We compute the one-loop matching between the Standard Model Effective Field Theory and the low-energy effective field theory below the electroweak scale, where the heavy gauge bosons, the Higgs particle, and the top quark are integrated out. The complete set of matching equations is derived including effects up to dimension six in the power counting of both theories. We present the results for general flavor structures and include both the C P -even and C P -odd sectors. The matching equations express the masses, gauge couplings, as well as the coefficients of dipole, three-gluon, and four-fermion operators in the low-energy theory in terms of the parameters of the Standard Model Effective Field Theory. Using momentum insertion, we also obtain the matching for the C P -violating theta angles. Our results provide an ingredient for a model-independent analysis of constraints on physics beyond the Standard Model. They can be used for fixed- order calculations at one-loop accuracy and represent a first step towards a systematic next-to-leading-log analysis.
影响因子：
5.4
作者：
A. Denner;S. Dittmaier;J. Lang
通讯作者：
A. Denner;S. Dittmaier;J. Lang
影响因子：
5.4
作者：
A. Denner;L. Jenniches;J. Lang;C. Sturm
通讯作者：
A. Denner;L. Jenniches;J. Lang;C. Sturm
影响因子：
64.8
作者：
Andreev, V.;Ang, D. G.;Wu, X.
通讯作者：
Wu, X.