论文标题
SAGEX关于散射幅度的评论，第9章：渔网理论中振幅的整合性
The SAGEX Review on Scattering Amplitudes, Chapter 9: Integrability of Amplitudes in Fishnet Theories
论文作者
论文摘要
我们讨论了散射幅度的特性，该幅度在$ \ Mathcal n = 4 $ sym的可集成变形的研究中以前出现。与后一种理论的区别，共形渔网理论中的散射幅度不遭受红外差异的影响，并且具有增强的对称性。我们证明，对于最简单的四粒子散射，可以计算单个和双跟踪部分振幅，以在领先的颜色近似中进行任意耦合。我们还回顾了在无限二维扬吉对称性下，在领先的颜色极限中，多粒子渔网振幅的单轨分量的不变性。
We discuss the properties of scattering amplitudes in a conformal bi-scalar fishnet theory that previously appeared in the study of integrable deformations of $\mathcal N=4$ SYM. In distinction with the latter theory, the scattering amplitudes in the conformal fishnet theory do not suffer from infrared divergences and possess enhanced symmetries. We demonstrate that for the simplest four-particle scattering the single- and double-trace partial amplitudes can be computed for arbitrary coupling in the leading color approximation. We also review the invariance of single-trace components of multi-particle fishnet amplitudes in the leading color limit under infinite-dimensional Yangian symmetry.
