BFKL pomeron propagator in the external field of the nucleus

TL;DR

This paper demonstrates through numerical analysis that the QCD pomeron propagator in a nuclear external field diminishes at high rapidities, suggesting potential for perturbative calculations of pomeron loops.

Contribution

It introduces a numerical method to analyze the pomeron propagator in nuclear matter and shows its vanishing at high rapidities, enabling perturbative approaches.

Findings

Pomeron propagator vanishes at high rapidities in nuclear matter.

Numerical calculations support the potential for perturbative pomeron loop calculations.

External field from the BK equation influences pomeron behavior.

Abstract

It is shown by numerical calculations that the convoluted QCD pomeron propagator in the external field created by a solution of the Balitsky-Kovchegov equation in the nuclear matter vanishes at high rapidities. This may open a possibility to apply the perturbative approach for the calculation of pomeron loops.