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Volume 375 - 14th International Symposium on Radiative Corrections (RADCOR2019) - PDFs and DIS
Master integrals for all unitarity cuts of massless 4-loop propagators
V. Magerya,* A. Pikelner
*corresponding author
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Pre-published on: 2019 December 19
Published on:
Abstract
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 shall discuss the calculation that completes the master integrals for these cuts: both the motivation and the methods (including dimensional recurrence relations and direct integration at higher space-time dimensions).
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