6 papers
Five legs @ three loops: slightly off-shell dual conformal integrals
Andrei V. Belitsky, Leonid V. Bork, Roman N. Lee +2
We calculate the three-loop master integrals contributing to the three-loop five-point amplitude on the special Coulomb branch of SYM theory. For the genuine pentag…
Five legs @ three loops: N=4 sYM amplitude near mass-shell
Andrei V. Belitsky, Leonid V. Bork, Roman N. Lee +1
We present a three-loop analysis of the scattering amplitude of five nearly massless W-bosons in planar maximally supersymmetric Yang-Mills theory. The basis of the master integral…
Method of regions for dual conformal integrals
Roman N. Lee
In this contribution, we present a recently introduced approach [BorkLeeOnishchenko2025] to the calculation of slightly off-shell dual conformal integrals based on the method of re…
Five W-boson amplitude = near-null decagon
A. V. Belitsky, L. V. Bork, R. N. Lee +2
We study a five-leg scattering amplitude on the special Coulomb branch of planar N=4 super Yang-Mills theory. We reach this point of the moduli space of scalar vacuum expectation v…
Method of regions for dual conformal integrals
Leonid V. Bork, Roman N. Lee, Andrei I. Onishchenko
We apply the method of regions to the evaluation of dual conformal integrals with small off-shellness. In contrast to conventional approach, where the separation of regions is perf…
Two-loop master integrals for process with account of electron mass
Roman N. Lee
We calculate a subset of two-loop master integrals relevant for the differential cross section of process. We consider only those families for which the accoun…