Radiative Electron Capture into the K- and L-Shell of H-, He-, and Li-Like Uranium Ions at Relativistic Energies

We report on the experimental study of the angular distributions of photons for the time-reversed photoionization process, i.e., the radiative electron capture (REC), in relativistic atomic collisions involving high-Z projectiles. Whereas former investigations focused on initially bare projectiles, we here extend our studies to heavy few-electron ions (H-, He- and Li-like uranium) in order to elucidate the importance of electron-electron interaction for photoionization in the realm of high-Z ions.