Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-11-28
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, Talk given at the International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT), U
Scientific paper
The program package GoSam is presented which aims at the automated calculation of one-loop amplitudes for multi-particle processes. The amplitudes are generated in terms of Feynman diagrams and can be reduced using either D-dimensional integrand-level decomposition or tensor reduction, or a combination of both. GoSam can be used to calculate one-loop corrections to both QCD and electroweak theory, and model files for theories Beyond the Standard Model can be linked as well. A standard interface to programs calculating real radiation is also included. The flexibility of the program is demonstrated by various examples.
Cullen Gavin
Greiner Nicolas
Heinrich Georg
Luisoni Gionata
Mastrolia Pierpaolo
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