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Numerical evaluation of phase space integrals by sector decomposition

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arxiv hep-ph/0402265 v1 pith:NT2TNEX5 submitted 2004-02-25 hep-ph

T. Binoth , G. Heinrich This is my paper · ORCID
classification hep-ph
keywords integralsdecompositioninfraredphasesectorspaceapplycalculate
verification ladder T0 review T1 audit T2 compute T3 formal

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In a series of papers we have developed the method of iterated sector decomposition for the calculation of infrared divergent multi-loop integrals. Here we apply it to phase space integrals to calculate a contribution to the double real emission part of the e+e- -> 2 jets cross section at NNLO. The explicit cancellation of infrared poles upon summation over all possible cuts of a given topology is worked out in detail for a specific example.

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