Abstract.
We describe a first attempt to calculate scalar 2-loop box-functions with arbitrary internal masses, applying a novel method proposed in [1]. Four of the eight integrals are accessible to integration by means of the residue theorem, leaving a rational function in the remaining variables. The result of the procedure is a three- or sometimes two-dimensional integral representation over a finite volume that can be further evaluated using numerical methods.
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Received: 7 May 1998 / Published online: 21 August 1998
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Kreckel, R., Kreimer, D. & Schilcher, K. First results with a new method for calculating 2-loop box-functions. Eur. Phys. J. C 6, 693–699 (1999). https://doi.org/10.1007/s100529800947
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DOI: https://doi.org/10.1007/s100529800947