Energy Level Structure And Spectral Transition Of 1s~22s~22p~3 And 1s~22p~5 Configurations For N-like Systems

In this paper,the fully relativistic wave functions of nitrogen-like isoelectron sequences(Z=14～30)were constructed by multi-configuration MCDF method,and the energy level structures and spectral transitions of 1s~22s~22p~3and 1s~22p~5configurations for N-like systems with Z=14～30 were studied theoretically.With the increase of atomic number Z,the relativistic effect on the atomic system increases significantly.The effect of correlation and relativistic effect on the orbital wave function is fully considered in the MCDF method.The Breit interaction and QED are also considered to further improve the accuracy and precision of the calculation.On this basis,the transition energies,transition probabilities,oscillator strength and line strength of 19 coupling pole transitions for 1s~22s~22p~3and 1s~22p~5configurations along the Nitrogen-like isoelectron(Z=14～30)have been calculated.Compared with the experimental data and other theoretical results existed,most of the calculated results in this paper are in good agreement with the experimental data,and most of the data are better than other theoretical values.The consistency of the three data proves the accuracy and reliability of the wave function constructed in this paper,as well as the rationality and effectiveness of the theoretical method adopted in this paper.The applicability and feasibility of the relativistic multi-configuration Dirac-Fock(MCDF)method in the study of multi-electron systems are verified with this work.The results obtained fill in some gaps in the original data,and provide new reference data for experimental research and theoretical exploration of N-like isoelectron.However,Individual atomic state energy calculation results do not agree well with experimental data.After in-depth discussion and analysis,the deviation is mainly due to:the influence of electron Lamb displacement is ignored.Therefore,the influence of electron Lamb displacement should be taken into account in the future theoretical calculation to obtain more accurate calculation results.