SmeftFR - Feynman rules generator for the Standard Model Effective Field Theory
SmeftFR - Feynman rules generator for the Standard Model Effective Field Theory
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SmeftFR - 标准模型有效场论的费曼规则生成器
DOI：
10.1016/j.cpc.2019.106931
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
L. Trifyllis
中科院分区：
文献类型：
--
作者：
A. Dedes;M. Paraskevas;J. Rosiek;K. Suxho;L. Trifyllis
摘要：我们提出了一个数学软件包SmeftFR，用于生成标准模型有效场论（SMEFT）的费曼规则，包括6维以下的规范不变算子的完整集合。费曼规则是使用FeynRules包直接在所有场的物理（质量特征态）基础上生成的。可以派生出完整的交互顶点集，包括SMEFT操作符的所有或任何选定子集。作为一个选项，用户还可以选择首选的量规固定，在酉量规或R -量规中生成费曼规则（后者包括生成幽灵顶点）。进一步的选择允许将中微子场视为无质量的Weyl或大质量的马约拉纳费米子。在质量基中导出的拉格朗日量可以导出为FeynRules支持的各种格式，例如UFO和feynats。SmeftFR使用的d= 6 Wilson系数的数值初始化接口为WCxf格式。该软件包还包括专用的Latex生成器，允许以清晰的人类可读的形式打印结果。SmeftFR可以从网址www下载。fuw。edu。pl / smeft。项目名称：SmeftFR v2。0程序文件doi: http://dx。doi。org/10.17632/yyv9fpmwzv。1许可条款：GPLv3编程语言：Mathematica 11.3或更高版本（据报告，较早版本运行此代码存在问题）。问题性质：标准模型有效场论（SMEFT）近年来已成为一种常用的模型，用于参数化新物理学的潜在影响。在如此复杂的理论中计算物理观测值需要很大程度的自动化，从生成各种格式的费曼规则开始，这些规则可以进一步导入到蒙特卡罗生成器或计算过渡幅度的符号包中。SmeftFR包在物理（质量）场基础上为用户定义的第5维和第6维算子子集生成SMEFT的Feynman规则，在单一或线性R ξ规中。求解方法：将参考文献[1]的结果（作为Mathematica软件包）实现。SmeftFR根据用户定义的一组选项动态地为FeynRules包[2]生成“模型文件”——最重要的是SMEFT操作符子集、量规固定选择和WCxf格式的Wilson系数的数值输入[3]。随后使用FeynRules引擎计算SMEFT Feynman规则，这些规则可以稍后通过SmeftFR辅助例程序以多种格式进行操作或导出，例如UFO， feynnts, Latex， WCxf等。附加注释：运行代码需要事先安装FeynRules包[2]，https://feynrules。irmp。伦敦大学学院。ac.。[1]A. Dedes， W. Materkowska， M. Paraskevas， J. Rosiek， K. Suxho，“R -规中标准模型有效场论的Feynman规则”，物理学报，1706,43 (2017). bbb10A. Alloul, ND Christensen， C. Degrande， C. Duhr和B. Fuks，“FeynRules 2.0—树级现象学的完整工具箱”，computer。理论物理。公共。185,2250 (2014).[3]J. Aebischer等人，WCxf：超越标准模型的Wilson系数交换格式，计算。理论物理。common . 232(2018) 71-83。
Abstract We present SmeftFR, a Mathematica package designed to generate the Feynman rules for the Standard Model Effective Field Theory (SMEFT) including the complete set of gauge invariant operators up to dimension 6. Feynman rules are generated with the use of FeynRules package, directly in the physical (mass eigenstates) basis for all fields. The complete set of interaction vertices can be derived including all or any chosen subset of SMEFT operators. As an option, the user can also choose preferred gauge fixing, generating Feynman rules in unitary or R ξ-gauges (the latter include generation of ghost vertices). Further options allow to treat neutrino fields as massless Weyl or massive Majorana fermions. The derived Lagrangian in the mass basis can be exported in various formats supported by FeynRules, such as UFO and FeynArts. Initialisation of numerical values of d= 6 Wilson coefficients used by SmeftFR is interfaced to WCxf format. The package also includes dedicated Latex generator allowing to print the result in clear human-readable form. SmeftFR can be downloaded from the address www. fuw. edu. pl/smeft. Program summary Program Title: SmeftFR v2. 0 Program Files doi: http://dx. doi. org/10.17632/yyv9fpmwzv. 1 Licensing provisions: GPLv3 Programming language: Mathematica 11.3 or later (earlier versions were reported to have problems running this code). Nature of problem: Standard Model Effective Field Theory (SMEFT) has become in recent years a commonly used model to parameterise the potential effects of New Physics. Calculation of physical observables within such a complicated theory requires large degree of automatisation, starting from the generation of Feynman rules in various formats, which could be further imported to Monte Carlo generators or symbolic packages calculating transition amplitudes. SmeftFR package generates such Feynman rules for SMEFT in physical (mass) field basis for the user defined subset of dimension 5 and 6 operators, in unitary or linear R ξ-gauges. Solution method: Implementation (as the Mathematica package) of the results of Ref.[1]. SmeftFR generates dynamically “model files” for the FeynRules package [2], based on user-defined set of options—most important are SMEFT operators subset, gauge fixing choice and numerical input for Wilson coefficients in the WCxf format [3]. Subsequently FeynRules engine is used to calculate SMEFT Feynman rules, which can be later manipulated or exported in several formats, such as UFO, FeynArts, Latex, WCxf and others, by SmeftFR auxiliary routines. Additional comments: Running the code requires prior installation of the FeynRules package [2], https://feynrules. irmp. ucl. ac. be.[1] A. Dedes, W. Materkowska, M. Paraskevas, J. Rosiek and K. Suxho,“Feynman rules for the Standard Model Effective Field Theory in R ξ-gauges,” JHEP 1706, 143 (2017).[2] A. Alloul, ND Christensen, C. Degrande, C. Duhr and B. Fuks,“FeynRules 2.0-A complete toolbox for tree-level phenomenology,” Comput. Phys. Commun. 185, 2250 (2014).[3] J. Aebischer, et al., WCxf: an exchange format for Wilson coefficients beyond the Standard Model, Comput. Phys. Commun. 232 (2018) 71–83.
影响因子：
6.3
作者：
Aebischer, Jason;Brivio, Ilaria;Vicente, Avelino
通讯作者：
Vicente, Avelino
单环级别两个标量扇区之间的自动匹配
DOI：
10.1140/epjc/s10052-019-6570-5
发表时间：
2019
期刊：
The European Physical Journal C
影响因子：
--
作者：
M. Gabelmann;M. Mühlleitner;F. Staub
通讯作者：
F. Staub
影响因子：
6.3
作者：
Degrande, Celine;Duhr, Claude;Reiter, Thomas
通讯作者：
Reiter, Thomas