SYSTEMATIC TRANSITION-PROBABILITY STUDIES FOR NEUTRAL NITROGEN

Methodologies for systematically including configuration states in cal culations for atomic transitions in many-electron systems such as nitr ogen are explored. Instead of generating configuration states by repla cements from a reference configuration, promotions from a reference co mplex are considered and the notion of layers is introduced. Our metho dology provides for an effective strategy for handling systems with ma ny electrons in a partially filled shell. Theoretical transition data is reported for transitions among a number of low-lying quartets in ni trogen. Comparisons with known experimental data and other theoretical calculations are included.