Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1849973 | Nuclear Physics B - Proceedings Supplements | 2006 | 5 Pages |
Abstract
We briefly sketch the methods for a numerically stable evaluation of tensor one-loop integrals that have been used in the calculation of the complete electroweak one-loop corrections to e+e−→4 fermions. In particular, the improvement of the new methods over the conventional Passarino–Veltman reduction is illustrated for some 4-point integrals in the delicate limits of small Gram (and other kinematical) determinants.
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