Built on

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Similar

B. Basso, A. Sever, P. Vieira, “Spacetime and flux tube S-matrices at finite coupling for N=4 supersymmetric Yang-Mills theory,” Phys. Rev. Lett. 111
Original
2013
Cited alongside, same era.
B. Basso, A. Sever, P. Vieira, “Space-time S-matrix and flux-tube S-matrix III. The two-particle contributions,” JHEP 1408
Original
2014
Cited alongside, same era.
B. Basso, A. Sever, P. Vieira, “Space-time S-matrix and flux-tube S-matrix IV. Gluons and fusion,” JHEP 1409
Original
2014
Cited alongside, same era.
B. Basso, A. Sever, P. Vieira, “Collinear Limit of Scattering Amplitudes at Strong Coupling,” Phys. Rev. Lett. 113
Original
2014
Cited alongside, same era.
A.V. Belitsky, “Nonsinglet pentagons and NHMV amplitudes,” Nucl. Phys. B 896

Then

J.L. Bourjaily, S. Caron-Huot, J. Trnka, “Dual-Conformal Regularization of Infrared Loop Divergences and the Chiral Box Expansion,” JHEP 1501
Original
2015
Later among the works it cites.
B. Basso, A. Sever, P. Vieira, “Hexagonal Wilson loops in planar 𝒩 = 4 {\mathcal{N}}=4 SYM theory at finite coupling,” J. Phys. A 49
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2016
Later among the works it cites.
J.M. Drummond, G. Papathanasiou, “Hexagon OPE Resummation and Multi-Regge Kinematics,” JHEP 1602
Original
2016
Later among the works it cites.
A.V. Belitsky, “Towards NMHV amplitudes at strong coupling,” Nucl. Phys. B 911
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2016
Later among the works it cites.
A. Bonini, D. Fioravanti, S. Piscaglia and M. Rossi, “Strong Wilson polygons from the lodge of free and bound mesons,” JHEP 1604

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Resummed tree heptagon

Belitsky, A. V.

Understand

The form factor program for the regularized space-time S-matrix in planar maximally supersymmetric gauge theory, known as the pentagon operator product expansion, is formulated in terms of flux-tube excitations propagating on a dual two-dimensional world-sheet, whose dynamics is known exactly as a function of 't Hooft coupling.

Both MHV and non-MHV amplitudes are described in a uniform, systematic fashion within this framework, with the difference between the two encoded in coupling-dependent helicity form factors expressed via Zhukowski variables.
The nontrivial SU(4) tensor structure of flux-tube transitions is coupling independent and is known for any number of charged excitations from solutions of a system of Watson and Mirror equations.
This description allows one to resum the infinite series of form factors and recover the space-time S-matrix exactly in kinematical variables at a given order of perturbation series.