OPITeR: A program for tensor reduction of multi-loop Feynman Integrals
arXiv:2411.02233 · doi:10.1016/j.cpc.2025.109606
Abstract
We present OPITeR, a FORM program for the reduction of multi-loop tensor Feynman integrals. The program can handle tensors, including spinor indices, with rank of up to 20 and can deal with up to 8 independent external momenta. The reduction occurs in dimensions compatible with conventional dimensional regularization. The program is able to manifest symmetries of the integrand in the tensor reduced form.
14 pages, 1 figure, version accepted for publication in Computer Physics Communications
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