New Representation for the 2-to-4 Gluon Vertex in High Energy QCD

TL;DR

This paper introduces a new BFKL kernel-based representation for the 2-to-4 gluon vertex in high energy QCD, potentially simplifying calculations of unitarity corrections and enabling the derivation of NLO corrections.

Contribution

The paper presents a novel representation of the 2-to-4 gluon vertex using only BFKL kernels, which is a new approach in high energy QCD.

Findings

Simplifies the structure of the 2-to-4 gluon vertex

Facilitates the potential calculation of NLO corrections

Provides insights into unitarity corrections in QCD

Abstract

A new representation for the two-to-four gluon vertex arising in the context of unitarity corrections is derived which involves only BFKL kernels. We discuss possible implications of this representation, including the possibility of finding the NLO corrections to the vertex.