https://doi.org/10.1140/epjc/s10052-022-10059-9
Regular Article - Theoretical Physics
Deeply virtual Compton scattering at the EIC and LHeC: a comparison among saturation approaches
1
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 11519, Prague, Czech Republic
2
High and Medium Energy Group, Instituto de Física e Matemática, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96010-900, Pelotas, RS, Brazil
Received:
13
November
2021
Accepted:
25
January
2022
Published online:
1
February
2022
The impact of nonlinear effects in the deeply virtual Compton scattering (DVCS) process that will be measured in future electron-hadron collisions is investigated. We present, for the first time, the predictions derived using the solution to the Balitsky–Kovchegov equation with the collinearly-improved kernel and including the impact-parameter dependence. We estimate the total cross section and t-distribution of the DVCS process in ep and eA collisions and demonstrate that 
is strongly dependent on the assumption for the impact-parameter dependence of the dipole-hadron scattering amplitude. Our results indicate that a future experimental analysis of this process will be useful to discriminate among different models for the saturation physics and, consequently, will allow us to constrain the description of QCD dynamics in parton densities.
© The Author(s) 2022
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Funded by SCOAP3
