期刊
EUROPEAN PHYSICAL JOURNAL C
卷 72, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-012-1889-1
关键词
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资金
- British Science and Technology Facilities Council (STFC)
- DFG [Sonderforschungsbereich Transregio 9]
- U.S. Department of Energy [DE-FG02-91ER40677]
- Alexander von Humboldt Foundation
- National Science Foundation [PHY-0855489, PHY-1068550]
- Marie-Curie-IEF, project: SAMURAI-Apps
- Research Executive Agency (REA) of the European Union [PITN-GA-2010-264564]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1068550] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855489] Funding Source: National Science Foundation
We present the program package GOSAM which is designed for the automated calculation of one-loop amplitudes for multi-particle processes in renormalisable quantum field theories. The amplitudes, which are generated in terms of Feynman diagrams, can be reduced using either D-dimensional integrand-level decomposition or tensor reduction. GOSAM can be used to calculate one-loop QCD and/or electroweak corrections to Standard Model processes and offers the flexibility to link model files for theories Beyond the Standard Model. A standard interface to programs calculating real radiation is also implemented. We demonstrate the flexibility of the program by presenting examples of processes with up to six external legs attached to the loop.
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