COMMENTS ON GLUON SCATTERING AMPLITUDES IN $\mathcal{N} = 4$ SUPER YANG-MILLS THEORY AT STRONG COUPLING

2008 ◽  
Vol 23 (14n15) ◽  
pp. 2135-2142 ◽  
Author(s):  
KATSUSHI ITO

We review recent developments in calculation of the gluon scattering amplitudes in [Formula: see text] super Yang-Mills theory at strong coupling via AdS/CFT correspondence. We discuss certain class of 6 and 8 point amplitudes at strong coupling, which can be obtained by cutting and gluing the 4-point amplitude.

2014 ◽  
Vol 2014 (1) ◽  
Author(s):  
Livia Ferro ◽  
Tomasz Lukowski ◽  
Carlo Meneghelli ◽  
Jan Plefka ◽  
Matthias Staudacher

Author(s):  
YUJI SATOH

We discuss gluon scattering amplitudes/null-polygonal Wilson loops of [Formula: see text] super Yang-Mills theory at strong coupling based on the gauge/string duality and its underlying integrability. We focus on the amplitudes/Wilson loops corresponding to the minimal surfaces in AdS3, which are described by the thermodynamic Bethe ansatz equations of the homogeneous sine-Gordon model. Using conformal perturbation theory and an interesting relation between the g-function (boundary entropy) and the T-function, we derive analytic expansions around the limit where the Wilson loops become regular-polygonal. We also compare our analytic results with those at two loops, to find that the rescaled remainder functions are close to each other for all multi-point amplitudes.


2010 ◽  
Vol 828 (1-2) ◽  
pp. 317-374 ◽  
Author(s):  
J.M. Drummond ◽  
J. Henn ◽  
G.P. Korchemsky ◽  
E. Sokatchev

1999 ◽  
Vol 59 (8) ◽  
Author(s):  
Francesco Antonuccio ◽  
Oleg Lunin ◽  
Stephen Pinsky

2018 ◽  
Vol 177 ◽  
pp. 09004
Author(s):  
A.E. Bolshov

The gluing operation is an effective way to get form factors of both local and non-local operators starting from different representations of on-shell scattering amplitudes. In this paper it is shown how it works on the example of form factors of operators from stress-tensor operator supermultiplet in Grassmannian and spinor helicity representations.


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