17 citations · 29 across the 10 of their papers we have counts for
10 papers
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…
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…
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 account…
Master integrals for process at large energies and angles
Roman N. Lee, Vyacheslav A. Stotsky
We calculate two-loop massive master integrals for in terms of generalized power series with respect to electron mass. The coefficients of this series are…
Polylogarithmic functions with prescribed branching locus and linear relations between them
Roman N. Lee
We consider the problem of finding the set of classical polylogarithmic functions with branching locus determined by the solution of $p_1\cdot p_2\cdot \ldots \cdot p…
-regular basis for non-polylogarithmic multiloop integrals and total cross section of the process
R. N. Lee, A. I. Onishchenko
We argue that in many physical calculations where the "eliptic" sectors are involved, one can express the results via iterated integrals with almost all weights being rational. Our…
ABJM quantum spectral curve and Mellin transform
R. N. Lee, A. I. Onishchenko
The present techniques for the perturbative solution of quantum spectral curve problems in N=4 SYM and ABJM models are limited to the situation when the states quantum numbers are…