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Volume 374 - Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions (LC2019) - Contributed
Impact parameter dependence of collinearly improved Balitsky-Kovchegov evolution
M. Matas,* D. Bendova, J. Cepila, J.G. Contreras
*corresponding author
Full text: pdf
Pre-published on: 2020 May 06
Published on: 2020 May 26
The Balistky-Kovchegov equation has been solved including the impact-parameter dependence. Previous attempts to include this dependence have been spoiled by the presence of the so-called Coulomb tails produced by the evolution. We show, that using the collinearly-improved kernel to the BK equation, the Coulomb tails are heavily suppressed which allows for a correct description of existing data⁠—both of the structure function and exclusive vector meson production⁠—, as well as for the prediction of processes that are feasible for measurement at future facilities such as EICs.
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