Effect of relativity on the oscillator strengths of 2p ⁶3s ² S _J ^e→2p ⁵3s ^{2 2} P _J ^o transition in Cu¹⁸⁺, Zn¹⁹⁺, Br²⁴⁺, and Kr²⁵⁺ ions

Abstract

We report Hartree-Fock and configuration-interaction calculations of both the length and velocity forms of the oscillator strengths for the resonance excitation 1s ²2s ²2p ⁶3s ² S _J ^e→1s ²2s ²2p ⁵3s ^{2 2} P _J ^o, transition, which leads to autoionization (Auger transition), in the Cu¹⁸⁺, Zn¹⁹⁺, Br²⁴⁺, and Kr²⁵⁺ ions of the sodium isoelectronic sequence both inLS and intermediate coupling schemes. Our present results demonstrate that relativity has a substantial influence on the oscillator strengths.