9 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…
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…
Tropical regions of near mass-shell pentabox
A. V. Belitsky, V. A. Smirnov
Coulomb branch amplitudes of maximally supersymmetric Yang-Mills theory display infrared properties different from their conformal counterparts. While the four-leg amplitude is kno…
Off-shell form factor: factorization is violated
A. V. Belitsky, V. A. Smirnov
We study the Sudakov form factor on the Coulomb branch of N=4 sYM, which endows only external states with masses, and implies that the former is off-shell in the traditional sense.…
Collinear bootstrap for N=(1,1) sYM
A. V. Belitsky, V. A. Smirnov
We study the multi-collinear behavior of tree amplitudes in the six-dimensional N = (1,1) super Yang-Mills theory (sYM). A generalized dimensional reduction of the latter yields th…
Pinching Sudakov
A. V. Belitsky, L. V. Bork, V. A. Smirnov
In this paper, we discuss the factorization of the Sudakov form factor on the Coulomb branch of maximally supersymmetric Yang-Mills theory in the near mass-shell limit. We unravel…
Three-leg form factor on Coulomb branch
A. V. Belitsky, L. V. Bork, J. M. Grumski-Flores +1
We study the form factor of the lowest component of the stress-tensor multiplet away from the origin of the moduli space in the spontaneously broken, aka Coulomb, phase of the maxi…
Near mass-shell double boxes
A. V. Belitsky, V. A. Smirnov
Two-loop multi-leg form factors in off-shell kinematics require knowledge of planar and nonplanar double box Feynman diagrams with massless internal propagators. These are complica…