scholarly journals A simple collinear limit of scattering amplitudes at strong coupling

2011 ◽  
Vol 2011 (3) ◽  
Author(s):  
Gang Yang
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling ◽  
Collinear Limit

scholarly journals Collinear Limit of Scattering Amplitudes at Strong Coupling

2014 ◽  
Vol 113 (26) ◽  
Author(s):  
Benjamin Basso ◽  
Amit Sever ◽  
Pedro Vieira
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling ◽  
Collinear Limit

scholarly journals Tree-level splitting amplitudes for a gluon into four collinear partons

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Vittorio Del Duca ◽  
Claude Duhr ◽  
Rayan Haindl ◽  
Achilleas Lazopoulos ◽  
Martin Michel
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling ◽  
Strong Coupling Constant ◽  
Tree Level ◽  
Leading Order ◽  
Coupling Constant ◽  
Level Splitting ◽  
Infrared Behaviour

Abstract We compute in conventional dimensional regularisation the tree-level splitting amplitudes for a gluon parent which splits into four collinear partons. This is part of the universal infrared behaviour of the QCD scattering amplitudes at next-to-next-to-next-to-leading order (N3LO) in the strong coupling constant. Combined with our earlier results for a quark parent, this completes the set of tree-level splitting amplitudes required at this order. We also study iterated collinear limits where a subset of the four collinear partons become themselves collinear.

scholarly journals GLUON SCATTERING AMPLITUDES FROM GAUGE/STRING DUALITY AND INTEGRABILITY

2013 ◽  
Vol 21 ◽  
pp. 1-21
Author(s):  
YUJI SATOH
Keyword(s):  
Perturbation Theory ◽  
Scattering Amplitudes ◽  
String Duality ◽  
Bethe Ansatz ◽  
Strong Coupling ◽  
Minimal Surfaces ◽  
Wilson Loops ◽  
Thermodynamic Bethe Ansatz ◽  
Yang Mills ◽  
Sine Gordon Model

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.

scholarly journals Quantum Wronskian approach to six-point gluon scattering amplitudes at strong coupling

2014 ◽  
Vol 2014 (8) ◽  
Author(s):  
Yasuyuki Hatsuda ◽  
Katsushi Ito ◽  
Yuji Satoh ◽  
Junji Suzuki
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling

scholarly journals Amplitudes in fishnet theories in diverse dimensions and box ladder diagrams

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
L. V. Bork ◽  
R. M. Iakhibbaev ◽  
N. B. Muzhichkov ◽  
E. S. Sozinov
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling ◽  
Generating Function ◽  
Simple Relation ◽  
Closed Expression

Abstract We investigate properties of four-point colour ordered scattering amplitudes in D = 6 fishnet CFT. We show that these amplitudes are related via a very simple relation to their D = 4 counterparts previously considered in the literature. Exploiting this relation, we obtain a closed expression for these amplitudes and investigate its behaviour at weak and strong coupling. As a by product of this investigation, we also obtain a generating function for on-shell D = 6 Box ladder diagrams with l rungs.

scholarly journals Comments on gluon 6-point scattering amplitudes in 𝒩 = 4 SYM at strong coupling

2007 ◽  
Vol 2007 (12) ◽  
pp. 077-077 ◽  
Author(s):  
Dumitru Astefanesei ◽  
Suguru Dobashi ◽  
Katsushi Ito ◽  
Horatiu Nastase
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling
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