Theoretical study on behaviors of 1s^22s-1s^2np transition for Co^(24+) ion in the whole energy region  

作　　者：WANG ZhiWen,TONG BaiChun,HU MuHong,GUO Yang & LI Ye College of Physics and Electronic Technology,Liaoning Normal University,Dalian 116029,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2009年第12期1971-1975,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 10774063)

摘　　要：Non-relativistic energies of 1s22s and 1s2np (n≤9) states for Co24+ ion are calculated by using the full-core plus correlation method. Our results of 1s22s and 1s22p states agree well with the high-precision results of Yan et al. Based on calculating the first-order corrections to the energy from relativistic and mass-polarization effects,we estimate the higher-order relativistic contribution and QED correc-tion to the energy under a hydrogenic approximation. The transition energies,wavelengths and oscil-lator strengths for the 1s22s-1s2np (n≤9) transitions of this ion are calculated. The results agree with the experimental data available in literature satisfactorily. By combining with quantum defect theory,our theoretical predictions on the energy and oscillator strength of this ion are extrapolated to the whole energy region including continuous states.Non-relativistic energies of 1s22s and 1s2np (n≤9) states for Co24+ ion are calculated by using the full-core plus correlation method. Our results of 1s22s and 1s22p states agree well with the high-precision results of Yan et al. Based on calculating the first-order corrections to the energy from relativistic and mass-polarization effects,we estimate the higher-order relativistic contribution and QED correc-tion to the energy under a hydrogenic approximation. The transition energies,wavelengths and oscil-lator strengths for the 1s22s-1s2np (n≤9) transitions of this ion are calculated. The results agree with the experimental data available in literature satisfactorily. By combining with quantum defect theory,our theoretical predictions on the energy and oscillator strength of this ion are extrapolated to the whole energy region including continuous states.

关 键 词：Co24+ ION TRANSITION energy WAVELENGTH OSCILLATOR strength quantum defect 

分 类 号：O562[理学—原子与分子物理]