# Generalized Fishnets and Exact Four-Point Correlators in Chiral CFT$_4$

## TL;DR

This paper analyzes the Feynman graph structure and computes exact four-point correlation functions in a chiral conformal field theory, revealing a generalized fishnet structure and providing explicit operator product expansion data.

## Contribution

It introduces a full description of the bulk behavior of large Feynman graphs in chiral CFT$_4$, generalizing previous fishnet models and summing diagrams exactly using Bethe-Salpeter methods.

## Key findings

- Identification of a generalized 'dynamical fishnet' structure in Feynman graphs
- Exact summation of four-point correlators including fermionic loops
- Explicit OPE data for twist-2 operators with spin

## Abstract

We study the Feynman graph structure and compute certain exact four-point correlation functions in chiral CFT$_4$ proposed by \"{O}.G\"{u}rdo\u{g}an and one of the authors as a double scaling limit of $\gamma$-deformed $\mathcal{N}=4$ SYM theory. We give full description of bulk behavior of large Feynman graphs: it shows a generalized "dynamical fishnet" structure, with a dynamical exchange of bosonic and Yukawa couplings. We compute certain four-point correlators in the full chiral CFT$_4$, generalizing recent results for a particular one-coupling version of this theory -- the bi-scalar "fishnet" CFT. We sum up exactly the corresponding Feynman diagrams, including both bosonic and fermionic loops, by Bethe-Salpeter method. This provides explicit OPE data for various twist-2 operators with spin, showing a rich analytic structure, both in coordinate and coupling spaces.