# On QCD RFT corrections to the propagator of reggeized gluons

## TL;DR

This paper computes a one-loop correction to the propagator of reggeized gluons within QCD Regge Field Theory, revealing non-eikonal, suppressed contributions that refine the understanding of high-energy gluon interactions.

## Contribution

It provides the first detailed calculation of one-loop RFT corrections to the reggeized gluon propagator using Lipatov's effective action and Dyson-Schwinger equations, including non-eikonal effects.

## Key findings

- Correction includes non-eikonal contributions suppressed by 1/√s
- Results applicable to both bare and one-loop corrected propagators
- Discussion on potential applications of the correction

## Abstract

We calculate an one loop QCD Regge Field Theory (RFT) correction to the propagator of reggeized gluons basing on the QCD effective action of Lipatov, \cite{LipatovEff,LipatovEff1,Our1,Our2,Our3,Our4}, and results of \cite{Our5} where Dyson-Schwinger hierarchy of the equations for the correlators of reggeized gluon fields was derived. The correction is calculated entirely in the framework of RFT with the use of the obtained expressions for the RFT bare triple Reggeon vertices and propagator of reggeized gluons, the cases of bare propagator and propagator calculated to one-loop precision are considered separately. In both results the obtained correction represents non-eikonal contributions to the propagator kinematically suppressed by $1/\sqrt{s}$ factor in comparison to the usual LLA contributions. The further application of the obtained results is discussed as well.