Master integrals for all unitarity cuts of massless four-loop propagators
High Energy Physics - Phenomenology
2019-12-16 v1
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).
Keywords
Cite
@article{arxiv.1912.06600,
title = {Master integrals for all unitarity cuts of massless four-loop propagators},
author = {Vitaly Magerya and Andrey Pikelner},
journal= {arXiv preprint arXiv:1912.06600},
year = {2019}
}
Comments
11 pages; contribution to the proceedings of RADCOR 2019; based on arXiv:1910.07522