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arXiv 2105.04844hep-phhep-ex
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标量轻夸克的完全拉格朗日量和费曼定则集

Complete Lagrangian and Set of Feynman Rules for Scalar Leptoquarks

Andreas Crivellin, Luc Schnell

摘要:

近年来,轻夸克(LQs)引起了人们越来越多的关注,主要是因为它可以解释$R(D^{(*)})$、$b \rightarrow s \ell^+ \ell^-$跃迁中的味异常和μ子的反常磁矩。在这篇文章中,我们提出了完整的拉格朗日和相应的费曼规则的标量leptoquark进一步自动化分析奠定了基础。这意味着我们考虑五种表象$Φ_1, Φ_{\tilde1}, Φ_2, Φ_{\tilde2}$和$Φ_3$,包括三次和四次自相互作用,以及与标准模型(SM)费米子、规范玻色子和希格斯玻色子的耦合。使用FeynRules进行计算,所有模型文件均可在https://gitlab.com/lucschnell/SLQrules上公开获得。

英文摘要:

Leptoquarks (LQs) have attracted increasing attention within recent years, mainly since they can explain the flavor anomalies found in $R(D^{(*)})$, $b \rightarrow s \ell^+ \ell^-$ transitions and the anomalous magnetic moment of the muon. In this article, we lay the groundwork for further automated analyses by presenting the complete Lagrangian and the corresponding set of Feynman rules for scalar leptoquarks. This means we consider the five representations $Φ_1, Φ_{\tilde1}, Φ_2, Φ_{\tilde2}$ and $Φ_3$ and include the triple and quartic self-interactions, as well as couplings to the Standard Model (SM) fermions, gauge bosons and the Higgs. The calculations are performed using FeynRules and all model files are publicly available online at https://gitlab.com/lucschnell/SLQrules.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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