Golem95: A numerical program to calculate one-loop tensor integrals with up to six external legs. (English) Zbl 1197.81004
Summary: We present a program for the numerical evaluation of form factors entering the calculation of one-loop amplitudes with up to six external legs. The program is written in Fortran95 and performs the reduction to a certain set of basis integrals numerically, using a formalism where inverse Gram determinants can be avoided. It can be used to calculate one-loop amplitudes with massless internal particles in a fast and numerically stable way.
MSC:
| 81-04 | Software, source code, etc. for problems pertaining to quantum theory |
| 65D30 | Numerical integration |
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