Calculating gluon one-loop amplitudes numerically
High Energy Physics - Phenomenology
2009-02-03 v1
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.
Cite
@article{arxiv.0902.0094,
title = {Calculating gluon one-loop amplitudes numerically},
author = {Jan-Christopher Winter and Walter T. Giele},
journal= {arXiv preprint arXiv:0902.0094},
year = {2009}
}
Comments
Contribution to Proceedings of LCWS08 and ILC08