Preprint / hep-ph FERMILAB-PUB-09-029-T arXiv:0902.0094

Calculating gluon one-loop amplitudes numerically

Winter, Jan-Christopher ; Giele, Walter T


Abstract: 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.

Note: Comments: Contribution to Proceedings of LCWS08 and ILC08

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 Record created 2009-03-31, last modified 2009-03-31

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