Unbiased Data-Driven Determination of the Nuclear Dipole Amplitude in the Color Glass Condensate

This repository provides coordinate- and momentum-space nuclear dipole amplitudes for $^{208}\mathrm{Pb}$, $^{12}\mathrm{C}$, $^{16}\mathrm{O}$, $^{27}\mathrm{Al}$, $^{40}\mathrm{Ar}$, $^{108}\mathrm{Ag}$, and $^{197}\mathrm{Au}$. The Pb amplitude is reconstructed using a physics-informed neural network constrained by ciBK evolution, forward $p\mathrm{Pb}$ hadron production, and coherent $J/\psi$ photoproduction in Pb--Pb ultraperipheral collisions. The other nuclear amplitudes are phenomenological extrapolations obtained by rescaling the initial saturation scale and applying the same ciBK evolution. The released results are impact-parameter averaged and are intended for small-$x$ phenomenological applications. The corresponding proton dipole amplitudes are available at https://doi.org/10.5281/zenodo.20794812.