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Steps towards full two-loop calculations for 2 fermion to 2 fermion processes: running versus pole masses schemes

F. Jegerlehner·M. Yu. Kalmykov
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Abstract

Recent progress in the calculation of the two-loop on-shell mass counterterms within the electroweak Standard Model (SM) for the massive particles are discussed. We are in progress of developing a package for full two-loop SM calculations of 2 -> 2 fermion processes, with emphasis on the analytical approach where feasible. The complete two-loop on-shell renormalization is implemented. Substantial progress has been made in calculating the master integrals. We are able to compute in an efficient and stable manner up to a few thousands of diagrams of very complex mass structure.

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F. Jegerlehner, M. Yu. Kalmykov. 2004-04-23. Steps towards full two-loop calculations for 2 fermion to 2 fermion processes: running versus pole masses schemes. https://doi.org/10.1016/j.nima.2004.07.105

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