Investigating the gluonic structure of nuclei via J/ψ scattering

We propose to investigate the properties of nuclear matter by measuring the elastic scattering of J/psi on nuclei with a high precision. J/psi mesons are produced from photons emitted in high-energy electron-proton or electron-nucleus scattering in the low-x region. Their scattering on nucleons or nuclei is predominantly mediated by gluonic forces. The measurement could be performed at the future ENC, EIC, or LHeC facility.