Atomic data for doubly-excited states of He-like ions and of Li-like ions with and

详细信息    查看全文

• 作者：F.F. Goryaev ; ^{goryaev_farid@mail.ru" class="auth_mail" title="E-mail the corresponding author} ; L.A. Vainshtein ; A.M. Urnov¹
• 关键词：He-like ions ; Li-like ions ; Energy levels ; Wavelengths ; Transition probabilities ; Dielectronic satellites
• 刊名：Atomic Data and Nuclear Data Tables
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：113
• 期：Complete
• 页码：117-257
• 全文大小：997 K

文摘

The wavelengths and radiative transition probabilities for transitions 94250ec7" title="Click to view the MathML source">2lnl^′→1snl^″$2ln{l}^{\prime }\to 1sn{l}^{″}$, a424" title="Click to view the MathML source">2lnl^′→1s2l^″$2ln{l}^{\prime }\to 1s2l^{″}$, a94499219d433e5224ebe3a0bc83db1" title="Click to view the MathML source">1s2lnl^′→1s²nl^″$1s2ln{l}^{\prime }\to 1s^{2}n{l}^{″}$, 1s2lnl^′→1s²2l^″$1s2ln{l}^{\prime }\to 1s^{2}2l^{″}$, and the autoionization decay probabilities for doubly-excited states 2lnl^′$2ln{l}^{\prime }$, 9f7c24c76ddbb191988d1757d007d" title="Click to view the MathML source">1s2lnl^′$1s2ln{l}^{\prime }$ were calculated in He-like and Li-like ions with atomic numbers 94" class="mathmlsrc">94.gif&_user=111111111&_pii=S0092640X16300092&_rdoc=1&_issn=0092640X&md5=595727253b622d5339387d970a1e6d2c" title="Click to view the MathML source">Z=6–36 for the principal quantum number a9817273ccda" title="Click to view the MathML source">n=2,3$n=2,3$ and the orbital quantum one 9f2e8365cb37fea48aa35fb4d" title="Click to view the MathML source">l=0–2$l=\text{0–2}$. The calculations were carried out by means of the MZ code based on the Z$Z$-expansion method. Relativistic corrections were taken into account within the framework of the Breit operator. The main difference with previous calculations by MZ code consists in accounting for the first order corrections in powers of 1/Z$1/Z$, corresponding to the screening effects, in calculations of autoionization rates. New data for comparatively large rates are of about 20%–50% less as compared to previous ones and are in an agreement within 10% with the results of calculations made by the methods based on multi-configuration wave functions with non-relativistic and relativistic orbitals. Some refinements and corrections concerning the energies and radiative transition probabilities were also introduced in the MZ code. In this paper the main formulas used in a modified MZ code and the data needed for the description of dielectronic satellites with a9817273ccda" title="Click to view the MathML source">n=2,3$n=2,3$ are given.