GoSam: A program for automated one-loop Calculations
Abstract
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.
Keywords
Cite
@article{arxiv.1111.6534,
title = {GoSam: A program for automated one-loop Calculations},
author = {G. Cullen and N. Greiner and G. Heinrich and G. Luisoni and P. Mastrolia and G. Ossola and T. Reiter and F. Tramontano},
journal= {arXiv preprint arXiv:1111.6534},
year = {2015}
}
Comments
10 pages, Talk given at the International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT), Uxbridge, London, September 2011