The controlled raising of discrete levels into the far continuum

A controlled raising of discrete levels into the far continuum is achieved within the configuration average Hartree-Fock scheme by acting on the valence electron of Cs I. The LS-dependent scheme is also considered, in which 4d94f 1P-based levels do not rise above the associated 4d thresholds. It is inferred that controlled transfer of oscillator strength to a 'shape resonance' in the 4d9 epsilon f 1P continuum will occur.