NUMERICAL APPROACH TO TWO-LOOP THREE POINT FUNCTIONS WITH MASSES

Abstract

Extending the method successful for one-loop integrals, the computation of two-loop diagrams with general internal masses is discussed. For the two-loop vertex of non-planar type, as an example, we show a calculation related to \(Z^0\rightarrow t \bar t\) vertex.

8 pages, latex with epsf.sty. 2 figures embedded with latex command and one postscript figure, revised version includes new references

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