Numerical evaluation of phase space integrals by sector decomposition

Details Numerical evaluation of phase space integrals by sector decomposition Numerical evaluation of phase space integrals by sector decomposition

2004-02-25

arxiv.org/abs/hep-ph/0402265v1

Nucl.Phys. B693 (2004) 134-148

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 2 figures

Scientific paper

10.1016/j.nuclphysb.2004.06.005

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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