Purpose The calculation of loop decays is a tedious work, which can rarely be performed in a reasonable time by calculating all arising diagrams by hand. The Mathematica package MasterTwoallows the automated calculation of all one- and two-loop Feynman integrals reducable to scalar integrals independent of external momenta and depending on up to two different masses. In contrast to other programmes like Reduceand Form it works completely inside Mathematica. Compared to other programmes like HIP, Tracer and FeynArts , MasterTwo is much smaller. It consists of two subpackages, Fermions and Integrals. Fermions covers the standard Dirac Algebra allowing the transformation of... Read more.

Last updated June 6, 2020
Feynman diagrams
scalar two loop integration
Dirac algebra
tensor reduction
heavy mass expansion

ColorMath is a Mathematica package for symbolically performing color summed calculations in SU(Nc). It is based on advanced pattern matching and uses a syntax which is very similar to how QCD color structure is written on paper.

FeynCalc is a Mathematica package for symbolic evaluation of Feynman diagrams and algebraic calculations in quantum field theory and elementary particle physics.

FormCalc is a Mathematica package for the calculation of tree-level and one-loop Feynman diagrams. It reads diagrams generated with FeynArts and returns the results in a way well suited for further numerical and analytical evaluation.

FeynArts is a package for the generation and visualization of Feynman diagrams and amplitudes.