✦ LIBER ✦
FeynmanParameter and trace - programs for expressing Feynman amplitudes as integrals over Feynman parameters
✍ Scribed by Todd H. West
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 750 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0010-4655
No coin nor oath required. For personal study only.
✦ Synopsis
We present two Mathematica programs, FeynmanParameter and trace, that automate the evaluation of Feynman diagrams with loops. FeynmanParameter converts integrals over loop momenta into integrals over Feynman parameters. If the input for FeynmanParameter contains any traces these are first evaluated by the program trace. Both trace and FeynmanParameter can work in an arbitrary number of dimensions, if desiredeven if the traces to be evaluated contain ~)'55.