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arXiv · hep-ph/9501201

Simple one-dimensional integral representations for two-loop self-energies: the master diagram

S. Bauberger·M. Boehm
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Abstract

The scalar two-loop self-energy master diagram is studied in the case of arbitrary masses. Analytical results in terms of Lauricella- and Appell-functions are presented for the imaginary part. By using the dispersion relation a one-dimensional integral representation is derived. This representation uses only elementary functions and is thus well suited for a numerical calculation of the master diagram.

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S. Bauberger, M. Boehm. 1995-01-02. Simple one-dimensional integral representations for two-loop self-energies: the master diagram. https://doi.org/10.1016/0550-3213(95)00199-3

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