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arXiv · hep-ph/0507080

Package for Calculations and Simplifications of Expressions with Dirac Matrixes (MatrixExp)

V. A. Poghosyan
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Abstract

This paper describes a package for calculations of expressions with Dirac matrixes. Advantages to existing similar packages are described. MatrixExp package is intended for simplification of complex expressions involving $γ$-matrixes, providing such tools as automatic Feynman parameterization, integration in $d$-dimensional space, sorting and grouping of results in a given order. Also, in comparison with existing similar package Tracer, presented package MatrixExp has more enhanced input possibility. User-available functions of MatrixExp package are described in detail. Also an example of calculation of Feynman diagram for process $b\to sγg$ with application of functions of MatrixExp package is presented.

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BibTeXRIS

V. A. Poghosyan. 2005-07-07. Package for Calculations and Simplifications of Expressions with Dirac Matrixes (MatrixExp). https://doi.org/10.1016/j.cpc.2005.06.002

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