X-ray wavelengths and Auger transition energies of 1s 2p⁴ (²S, ^2,4P, ²D) resonances in B-like (Z = 6–18) ions

We report Auger energies of the 1s 2p⁴ (²S, ^2,4P, ²D) resonances belonging to the 1s 2p⁴ (²S, ^2,4P, ²D) → 1s² 2p² (¹S, ¹P, ¹D) and to the 1s 2p⁴ (²S, ^2,4P, ²D) → 1s² 2s2p ^1,3P transitions in B-like ions (Z = 6–18). X-ray wavelengths of the 1s2p⁴ (²S, ²P, ²D) resonances are also reported. The calculations are carried out in the framework of the screening constant by unit nuclear charge (SCUNC) formalism. The present results for the core-excited 1s 2p⁴ (²S, ^2,4P, ²D) resonances in B-like C⁺, O³⁺, Ne⁵⁺, Mg⁷⁺ and Si⁹⁺ ions agree well with recent saddle-point variation and saddle-point complex-rotation (SPCR) results (Sun et al 2013 Phys. Rev A 87 032509). The new Auger energies and wavelengths for the 1s 2p⁴ (²S, ^2,4P, ²D) resonances in B-like N²⁺, F⁴⁺, Na⁶⁺, Al⁸⁺, P¹⁰⁺, S¹¹⁺, Cl¹²⁺ and Ar¹³⁺ ions provide benchmarked values for future experimental and theoretical studies on these B-like ions in connection with the diagnostic of astrophysical and laboratory plasma. (paper)