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The Balitsky-Kovchegov equation in full momentum space

C. Marquet·G. Soyez
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Abstract

We analyse the Balitsky-Kovchegov (BK) saturation equation in momentum space and solve it numerically. We confirm that, in the limit where the transverse momentum of the incident particle k is much bigger than the momentum transfer q, the equation admits travelling-wave solutions. We extract the q dependence of the saturation scale Q_s(Y) and verify that Q_s(Y=cste) scales as max(q,Q_T), where Q_T is the scale caracterizing the target.

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C. Marquet, G. Soyez. 2006-06-07. The Balitsky-Kovchegov equation in full momentum space. https://doi.org/10.1016/j.nuclphysa.2005.05.198

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