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arXiv · 2602.00864

The Balitsky-Kovchegov equation for dipole gluon density in the momentum space

Krzysztof Kutak
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Abstract

I present derivation the BK equation for the dipole gluon density in momentum space, starting from its standard formulation in coordinate space. I review the equation for both proton and nuclear targets, and I also discuss the resummed BK evolution.The purpose of this paper is to consolidate derivations and formulas scattered across the literature, to show in detail how the structure of the triple-Pomeron vertex emerges in the unfolded form of the nonlinear term, and to establish a consistent notation throughout.

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Krzysztof Kutak. 2026-01-31. The Balitsky-Kovchegov equation for dipole gluon density in the momentum space. https://arxiv.org/abs/2602.00864

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