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 N, and is thus particularly suited to being organized as a systematic expansion in 1/N.
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ArXiv ePrint: 1106.0155
On leave of absence from INFN, Sezione di Genova, Italy. (Stefano Frixione)
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Frixione, S. Colourful FKS subtraction. J. High Energ. Phys. 2011, 91 (2011). https://doi.org/10.1007/JHEP09(2011)091
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DOI: https://doi.org/10.1007/JHEP09(2011)091