Automated computation of spin- and colour-correlated Born matrix elements

Details Automated computation of spin- and colour-correlated Born matrix elements Automated computation of spin- and colour-correlated Born matrix elements

2005-10-12

arxiv.org/abs/hep-ph/0510157v1

Eur.Phys.J.C45:745-757,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages

Scientific paper

10.1140/epjc/s2005-02467-6

I report on an implementation of an algorithm for the automated numerical calculation of spin- and colour-correlated Born matrix elements in QCD. These spin- and colour-correlated matrix elements are needed for NLO calculations in combination with the subtraction method. Both massless and massive quarks are considered. There are no restrictions on the number of external particles. As a trivial sub-case, the algorithm also applies to Born matrix elements without any correlations. These are sufficient for leading order calculations.

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