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arXiv 2006.04137hep-ph
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MasterTwo:用于自动计算标准模型及其他模型中两个回路图的Mathematica软件包

MasterTwo: A Mathematica Package for the Automated Calculation of Two Loop Diagrams in the Standard Model and Beyond

Sabine Schilling

摘要:

在粒子物理的标准模型及其推广中,计算稀有环衰变是一项极其繁琐的工作。Mathematica软件包MasterTwo有助于完成此任务。它可以自动计算所有可归约为标量积分的循环积分,取决于最多两个独立于外部动量的不同质量。MasterTwo由两个子包组成,费米子和积分。而费米子涵盖了标准的狄拉克代数,积分执行泰勒展开,部分分数,张量减少和因此实现的标量积分的积分。该软件包完全在Mathematica中运行,可以轻松地为教育和研究目的进行定制。

英文摘要:

The calculation of rare loop decays in the Standard Model of Particle Physics and its extensions is an extremely tedious work. The Mathematica package MasterTwo facilitates this task. It automatically calculates all loop integrals reducible to scalar integrals depending on up to two different masses independent of external momenta. MasterTwo consists of two sub packages, Fermions and Integrals. Whereas Fermions covers the standard Dirac Algebra, Integrals performs the Taylor expansion, partial fraction, tensor reduction and the integration of the thus achieved scalar integrals. The package works completely inside Mathematica and can be easily customised for both educational and research purposes.

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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