Multi-gluon one-loop amplitudes using tensor integrals

Details Multi-gluon one-loop amplitudes using tensor integrals Multi-gluon one-loop amplitudes using tensor integrals

2009-05-07

arxiv.org/abs/0905.1005v2

JHEP 0907:088,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, results for quark loops added, accuracy analysis extended, mistakes corrected, reference added

Scientific paper

10.1088/1126-6708/2009/07/088

An efficient numerical algorithm to evaluate one-loop amplitudes using tensor
integrals is presented. In particular, it is shown by explicit calculations
that for ordered QCD amplitudes with a number of external legs up to 10, its
performance is competitive with other methods.

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