Gluons in a Color-Neutral Nucleus

TL;DR

This paper enhances the McLerran-Venugopalan model by incorporating color neutrality, which removes infrared divergences and aligns with the physical fact that nucleons carry no net color charge.

Contribution

The authors introduce a charge-density correlation function ensuring color neutrality, improving the model's physical consistency and mathematical stability.

Findings

Infrared divergence is eliminated by enforcing color neutrality.

The modified model aligns better with physical observations.

The approach improves the theoretical description of gluons in nuclei.

Abstract

We improve the McLerran-Venugopalan model by introducing a charge-density correlation function which is consistent with the observation that nucleons carry no net color charge. The infrared divergence in the transverse coordinates that was present in the McLerran-Venugoplan model is eliminated by the enforcement of color neutrality.