Oscillator strengths for transitions in C-like ions between K XIV and Mn XX

Abstract

Energy levels and oscillator strengths (transition probabilities) have been calculated for transitions among 46 fine-structure levels of the (1s 2 ) 2s 2 2p 2 , 2s2p 3 , 2p 4 , 2s 2 2p3s, 2s 2 2p3p and 2s 2 2p3d configurations of C-like K XIV, Sc XVI, Ti XVII, V XVIII, Cr XIX and Mn XX using the GRASP code. Configuration interaction and relativistic effects have been included while generating the wavefunctions. Calculated values of energy levels agree within 3% with the experimentally compiled results, and the length and velocity forms of oscillator strengths agree within 20% for a majority of allowed transitions.