Stable One-Dimensional Integral Representations of One-Loop N-Point Functions in the General Massive Case: I - Three Point Functions - Archive ouverte HAL
Article Dans Une Revue Journal of High Energy Physics Année : 2013

Stable One-Dimensional Integral Representations of One-Loop N-Point Functions in the General Massive Case: I - Three Point Functions

Résumé

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.

Dates et versions

hal-00874128 , version 1 (17-10-2013)

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J. Ph. Guillet, E. Pilon, M. Rodgers, M. S. Zidi. Stable One-Dimensional Integral Representations of One-Loop N-Point Functions in the General Massive Case: I - Three Point Functions. Journal of High Energy Physics, 2013, 11, pp.154. ⟨10.1007/JHEP11(2013)154⟩. ⟨hal-00874128⟩
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