Automated one-loop calculations with GoSam

G. Cullen; N. Greiner; G. Heinrich; G. Luisoni; P. Mastrolia; G. Ossola; T. Reiter; F. Tramontano

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arXiv · 1201.2782

Automated one-loop calculations with GoSam

G. Cullen·N. Greiner·G. Heinrich·G. Luisoni·P. Mastrolia·G. Ossola·T. Reiter·F. Tramontano

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Abstract

In this talk, the program package GOSAM is presented, which can be used for the automated calculation of one-loop amplitudes for multi-particle processes. The integrands are generated in terms of Feynman diagrams and can be reduced by d-dimensional integrand-level decomposition, or tensor reduction, or a combination of both. Through various examples we show that GOSAM can produce one-loop amplitudes for both QCD and electroweak theory; model files for theories Beyond the Standard Model can be linked as well.

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G. Cullen, N. Greiner, G. Heinrich, G. Luisoni, P. Mastrolia, G. Ossola, T. Reiter, F. Tramontano. 2012-01-18. Automated one-loop calculations with GoSam. https://arxiv.org/abs/1201.2782

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