Decay properties of doubly excited states in H-like uranium

The Mechanism of formation of the doubly excited states in collisions between H-like Uranium and H2 via resonant transfer and excitation process was reviewed, and compared with radiative electron capture. The contributions from competing processes in the measured X-ray spectrum are discussed. From the measured angular distribution for the Kα hyper-satellite, it is found that strong anisotropy exists for the resonance KL1/2L3/2, in contrast to the resonance KL3/2L3/2, the difference may be due to the Pauli exclusion principle and jj-couplings of the electron-electron interaction. (authors)