Cu^(26+)离子1s^23s—1s^2np跃迁的波长和振子强度

Wavelength and oscillator strength for 1s^23s-1s^2np transition of Cu^(26+)ion

用全实加关联方法计算了Cu^(26+)离子1s^23s和1s^2np(n≤9)态的非相对论能量.在计算相对论效应和质量极化效应对体系能量的一级修正的基础上,通过引入价电子的有效核电荷,在类氢近似下,估算了对能量的高阶相对论修正和QED修正,计算了该离子1s^23s-1s^2np的跃迁能,波长和在三种规范下的振子强度.得到与现有实验数据符合得很好的结果.与量子亏损理论结合,将对该离子能量和振子强度的理论预言准确地外推到包括连续态的整个能域.

The non-relativistic energies of 1s^23s and 1s^2np(n≤9) states for Cu^(26+) ion are calculated by using the full-core plus correlation method. 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 correction to the energy under a hydrogenic approximation. The transition energies, wavelengths and oscillator strengths for the 1s^23s-1s^2np transitions of this ion are calculated. The results agree with experimental available in literature data satisfactorily. By combining with quantum defect theory,our theoretical predictions on the energy and oscillator strength of this ion are extrapolated to whole energy region including continuous states.