On the Multi-Component Pomeron in high energy hadronic interactions

TL;DR

This paper explores how the BFKL pomeron splits into multiple components due to running coupling effects, enabling a unified treatment of soft and hard pomerons in high-energy QCD interactions.

Contribution

It introduces a model where regge cut splitting accounts for both perturbative and nonperturbative pomeron components through the BFKL framework with running coupling.

Findings

Effective inclusion of nonperturbative pomeron parts

Unified treatment of soft and hard pomerons

Potential explanation for regge cut phenomena

Abstract

We consider the phenomenon of regge cut splitting, corresponding to the BFKL pomeron into an infinite sequence of regge-poles, which happens when one takes into account the running of QCD coupling with scale. The first members of this sequence, after adjusting their parameters, can effectively include the nonperturbative part of pomeron, and by this way all pomeron components - soft and hard can be treated in a unique way.