Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-01-02
Nucl.Phys. B445 (1995) 25-48
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, LaTex, 3 eps-figures (uuencoded) appended
Scientific paper
10.1016/0550-3213(95)00199-3
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.
Bauberger S.
Boehm Manfred
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