Stable one-dimensional integral representations of one-loop N-point functions in the general massive case. I — Three point functionsReport as inadecuate




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Journal of High Energy Physics

, 2013:154

First Online: 19 November 2013Received: 17 October 2013Accepted: 04 November 2013 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.

KeywordsNLO Computations ArXiv ePrint: 1310.4397

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Author: J. Ph. Guillet - E. Pilon - M. Rodgers - M. S. Zidi

Source: https://link.springer.com/







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