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arXiv · 2002.11056

Predictions for nuclear structure functions from the impact-parameter dependent Balitsky-Kovchegov equation

J. Cepila·J. G. Contreras·M. Matas
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Abstract

In this work we present dipole scattering amplitudes, including the dependence on the impact-parameter, for a variety of nuclear targets of interest for the electron-ion colliders (EICs) being currently designed. These amplitudes are obtained by numerically solving the Balitsky-Kovchegov equation with the collinearly improved kernel. Two different cases are studied: initial conditions representing the nucleus under consideration and the solutions based on an initial condition representing a proton complemented by a Glauber-Gribov prescription to obtain dipole-nucleus amplitudes. We find that the energy evolution of these two approaches differ. We use the obtained dipole scattering amplitudes to predict ($i$) nuclear structure functions that can be measured in deep-inelastic scattering at EICs and ($ii$) nuclear suppression factors that reveal the energy evolution of shadowing for the different cases we studied. We compare our predictions with the available data.

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J. Cepila, J. G. Contreras, M. Matas. 2020-02-25. Predictions for nuclear structure functions from the impact-parameter dependent Balitsky-Kovchegov equation. https://doi.org/10.1103/physrevc.102.044318

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