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arXiv · 0902.0094

Calculating gluon one-loop amplitudes numerically

Jan-Christopher Winter·Walter T. Giele
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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.

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Jan-Christopher Winter, Walter T. Giele. 2009-02-01. Calculating gluon one-loop amplitudes numerically. https://arxiv.org/abs/0902.0094

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