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arxiv: 0902.0094 · v1 · pith:BCKBVP57 · submitted 2009-02-01 · hep-ph

Calculating gluon one-loop amplitudes numerically

Jan-Christopher Winter , Walter T. Giele This is my paper

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classification hep-ph
keywords algorithmamplitudescalculatingone-loopaccuracybrieflycaseclosely
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This note reports on an independent implementation of calculating one-loop amplitudes semi-numerically using generalized unitarity techniques. The algorithm implemented in form of a C++ code closely follows the method by Ellis, Giele, Kunszt and Melnikov. For the case of gluons, the algorithm is briefly reviewed. Double-precision results are presented documenting the accuracy and efficiency of this computation.

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