Abstract
In this article we provide representations for the one-loop three point functions in 4 and 6 dimensions in the general case with complex masses. The latter are part of the GOLEM library used for the computation of one-loop multileg amplitudes. These representations are one-dimensional integrals designed to be free of instabilites induced by inverse powers of Gram determinants, therefore suitable for stable numerical implementations.
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ArXiv ePrint: 1310.4397
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Guillet, J.P., Pilon, E., Rodgers, M. et al. Stable one-dimensional integral representations of one-loop N-point functions in the general massive case. I — Three point functions. J. High Energ. Phys. 2013, 154 (2013). https://doi.org/10.1007/JHEP11(2013)154
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DOI: https://doi.org/10.1007/JHEP11(2013)154