The energies and oscillator strengths of bound states of Be

The energies and wavefunctions of the , and states of beryllium are calculated with a model-potential method by using selected B-spline basis functions in a configuration-interaction (CI) scheme. Our length results of the oscillator strengths for electric dipole transitions and the energies, which are set to be zero at the ground state of Be III, are compared with the experimental and other theoretical results. The agreement showed that our method is capable of giving accurate results for various states of beryllium efficiently.