论文标题
MasterTwo：用于自动计算标准模型中两个环图的自动计算的Mathematica软件包
MasterTwo: A Mathematica Package for the Automated Calculation of Two Loop Diagrams in the Standard Model and Beyond
论文作者
论文摘要
粒子物理及其扩展标准模型中稀有环衰减的计算是一项极其乏味的工作。 Mathematica软件包MasterTwo促进了这项任务。它会自动计算所有可降低为标量积分的循环积分，具体取决于多达两个独立于外部动量的质量。 MasterTwo由两个子软件包组成，即费米和积分。尽管fermions涵盖了标准的狄拉克代数，但积分执行了泰勒的扩展，部分分数，张量还原以及如此实现的标量积分的积分。该软件包在Mathematica内部完全工作，并且可以轻松地用于教育和研究目的。
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.
