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hep-ph2019
Master integrals for all unitarity cuts of massless four-loop propagators
Vitaly Magerya, Andrey Pikelner
Among the unitarity cuts of massless 4-loop propagators two classes have remained unknown until recently: 2-loop 3-particle cuts, and 1-loop 4-particle cuts. In this article we sha…
hep-ph2019★ 14 cited
Cutting massless four-loop propagators
Vitaly Magerya, Andrey Pikelner
Among the unitarity cuts of 4-loop massless propagators two kinds are currently fully known: the 2-particle cuts with 3 loops corresponding to form-factors, and the 5-particle phas…