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arXiv 1310.3533physics.atom-ph
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Ba、Ra、II、Fr I和超重元素E119 I、E120 II光谱的全级计算

All-order calculations of the spectra of Ba II, Ra II, Fr I and superheavy elements E119 I and E120 II

V. A. Dzuba

摘要:

本文采用库仑相互作用各阶关联图的主类求和方法,计算了Ba Ⅱ、Ra Ⅱ、Fr Ⅰ、E119 Ⅰ和E120 Ⅱ的最低$s,p$和$d$态的能量。Breit和量子电动力学修正也包括在内。与Ba Ⅱ、Ra Ⅱ和Fr Ⅰ的实验比较表明,计算的准确度在0.1%的水平上。该方法已用于超重元素E 119和E 120 $^+$的能谱预测。{ \em梯形图}(V.A. Dzuba,Phys.Rev.A { \bf 78},042502(2008)),其是对该方法的最新补充。它们的列入显着提高了计算的准确性,并扩大了该方法的适用性。

英文摘要:

A technique based on summation of dominating classes of correlation diagrams to all orders in Coulomb interaction is used to calculate the energies of the lowest $s,p$ and $d$ states of Ba II, Ra II, Fr I, E119 I and E120 II. Breit and quantum electrodynamic corrections are also included. Comparison with experiment for Ba II, Ra II and Fr I demonstrates that the accuracy of the calculations is on the level of 0.1%. The technique has been applied to predict the spectra of superheavy elements E119 and E120$^+$. The role of the {\em ladder diagrams} (V. A. Dzuba, Phys. Rev. A {\bf 78}, 042502 (2008)) which is the most recent addition to the method has been emphasised. Their inclusion significantly improves the accuracy of the calculations and expands the applicability of the method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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