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physica: A Mathematica Package for the Symbolic Calculation of Tree Order Processes
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| Proceedings of the Second International Workshop on Software Engineering, Artificial Intelligence and Expert Systems for High Energy and Nuclear Physics, France (1992): Preprint BUTP-92/7 |
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We present physica, a Mathematica package for the symbolic calculation of tree order processes. Originally physica was developed for the calculation of the total cross section of pi N --> pi pi N scattering in Chiral Perturbation Theory. After a general introduction, the concepts used in physica are discussed and it is shown how physica can be used to calculate cross sections.
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