Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-11-17
Phys.Lett. B450 (1999) 234-240
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 4 figures, uses axodraw.sty, final version, minor changes
Scientific paper
10.1016/S0370-2693(99)00147-1
I give an efficient algorithm for the reduction of multi-leg one-loop integrals of rank one. The method combines the basic ideas of the spinor algebra approach with the dual vector approach and is applicable to box integrals or higher point integrals, if at least one external leg is massless. This method does not introduce Gram determinants in the denominator. It completes an algorithm recently given by R. Pittau.
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