SMEFTsim 3.0 -实用指南
SMEFTsim 3.0 -- a practical guide
摘要：
SMEFTsim软件包旨在实现标准模型有效场论（SMEFT）中的自动计算，其中SM拉格朗日量扩展为六维算子的完整基础。它包含一组用FeynRules编写的模型，并预先导出为UFO格式，用于Monte Carlo事件生成器。这些模型在风味假设和为电弱部门选择的输入参数方面有所不同。本文件提供了一个自成一体的教学参考资料，收集了与使用SMEFTsim有关的所有理论和技术方面，并记录了3.0版的发布。与以前的版本相比，SM中通过胶子融合产生希格斯粒子的描述得到了显着改进，增加了顶夸克扇区研究的两个风味假设，并实现了一个新的功能，允许对不稳定粒子的传播子进行线性SMEFT修正。
英文摘要：
The SMEFTsim package is designed to enable automated computations in the Standard Model Effective Field Theory (SMEFT), where the SM Lagrangian is extended with a complete basis of dimension six operators. It contains a set of models written in FeynRules and pre-exported to the UFO format, for usage within Monte Carlo event generators. The models differ in the flavor assumptions and in the input parameters chosen for the electroweak sector. The present document provides a self-contained, pedagogical reference that collects all the theoretical and technical aspects relevant to the use of SMEFTsim and it documents the release of version 3.0. Compared to the previous release, the description of Higgs production via gluon-fusion in the SM has been significantly improved, two flavor assumptions for studies in the top quark sector have been added, and a new feature has been implemented, that allows the treatment of linearized SMEFT corrections to the propagators of unstable particles.
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