Main Image
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
Full text: pdf
Pre-published on: 2019 December 19
Published on: 2020 February 18
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).
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.