Colourful FKS subtraction
arXiv:1106.0155 · doi:10.1007/JHEP09(2011)091
Abstract
I formulate in a colour-friendly way the FKS method for the computation of QCD cross sections at the next-to-leading order accuracy. This is achieved through the definition of subtraction terms for squared matrix elements, constructed with single colour-dressed or pairs of colour-ordered amplitudes. The latter approach relies on the use of colour flows, is exact to all orders in , and is thus particularly suited to being organized as a systematic expansion in 1/N.
56 pages. This version is identical to that published in JHEP, except for a couple of minor corrections in app. C
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- Random polarisations of the dipoles
- The matrix element method at next-to-leading order for arbitrary jet algorithms
- Phenomenological Study of the Interplay between IR-Improved DGLAP-CS Theory and the Precision of an NLO ME Matched Parton Shower MC
- NLO QCD corrections to tW' and tZ' production in forward-backward asymmetry models
- Status of MadLoop/aMC@NLO