Doubly-excited states of beryllium-like ions

The resonance energies and widths for doubly-excited (1s(2)3d(2), 3p4f, 3d4 d) (1)G(e) states of beryllium-like ions are determined by calculating the density of resonance states using the stabilization method. A model potenti al is used to represent the interaction between the outer electrons and the core electrons. Products of Slater Orbitals are used to represent the two- electron wave functions. We present results for some lower-lying doubly-exc ited states for Z = 5-10. Comparisons are made with other calculations in t he literature.