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arXiv · hep-ph/0402265

Numerical evaluation of phase space integrals by sector decomposition

T. Binoth·G. Heinrich
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Abstract

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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T. Binoth, G. Heinrich. 2004-02-25. Numerical evaluation of phase space integrals by sector decomposition. https://doi.org/10.1016/j.nuclphysb.2004.06.005

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