The role of AGK theorem in QCD

TL;DR

This paper investigates the applicability of the AGK theorem in quantum chromodynamics (QCD), proposing generalized rules for gluon emissions and highlighting limitations of traditional soft AGK extrapolations.

Contribution

It introduces AGK-like rules for calculating exclusive gluon distributions in QCD and emphasizes the need for a more generalized formulation beyond the soft AGK approach.

Findings

Naive soft AGK extrapolation is not effective in QCD.

Proposes generalized AGK-like rules for gluon emissions.

Highlights limitations of pomeron-based models in QCD.

Abstract

We rise the question about a role of AGK theorem in QCD. Considering multiple-gluons emissions in a scattering process, we formulate the AGK-like rules of calculation of exclusive gluon distributions. The result shows that the naive extrapolation of the soft AGK, based on the pomeron idea, is not constructive and one should find a more generalized formulation.