scholarly journals Scattering amplitudes at strong coupling for 4K gluons

2010 ◽  
Vol 2010 (12) ◽  
Author(s):  
Gang Yang
Keyword(s):  
Scattering Amplitudes ◽  
Strong Coupling

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

scholarly journals Scattering Amplitudes, the AdS/CFT Correspondence, Minimal Surfaces, and Integrability

2010 ◽  
Vol 2010 ◽  
pp. 1-31
Author(s):  
Luis F. Alday
Keyword(s):  
Scattering Amplitudes ◽  
Integral Equations ◽  
Strong Coupling ◽  
Minimal Surfaces ◽  
Four Dimensions ◽  
Detailed Exposition

We focus on the computation of scattering amplitudes of planar maximally supersymmetric Yang-Mill in four dimensions at strong coupling by means of the AdS/CFT correspondence and explain how the problem boils down to the computation of minimal surfaces in AdS in the first part of this paper. In the second part of this review we explain how integrability allows to give a solution to the problem in terms of a set of integral equations. The intention of the review is to give a pedagogical, rather than very detailed, exposition.

Sign in / Sign up

Export Citation Format

Share Document