Nucleon structure functions at small $x$ via holographic Pomeron exchange

TL;DR

This paper models nucleon structure functions at small Bjorken $x$ using holographic QCD with Pomeron exchange, successfully matching experimental data from HERA.

Contribution

It introduces a holographic QCD approach to describe nucleon structure functions at small $x$ via Pomeron exchange, linking nonperturbative interactions to reggeized gravitons in AdS space.

Findings

Calculated $F_2$ and $F_L$ structure functions agree with HERA data.

Demonstrated the effectiveness of holographic Pomeron exchange in nonperturbative QCD.

Provided a novel theoretical framework for small-$x$ nucleon structure analysis.

Abstract

The analysis on nucleon structure functions at small Bjorken $x$ in the framework of holographic QCD is presented. In the model setup, the complicated nonperturbative interaction between the virtual photon and the target nucleon is described via the Pomeron exchange, which corresponds to the reggeized graviton exchange in the AdS space. We show that our calculations for both $F_2$ and $F_L$ structure functions are in agreement with the experimental data measured at HERA.