Dominance of double processes in complete Auger decay of Rb+(3d−1)
Dominance of double processes in complete Auger decay of Rb+(3d−1)
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Rb 完全俄歇衰变中双过程的主导地位 (3d-1)
DOI：
10.1103/physreva.101.012507
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
曾交龙
中科院分区：
文献类型：
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作者：
刘丽萍;李永军;高城;曾交龙
研究了Rb+(3d−1)的完整俄歇衰变，包括单过程和双过程。畸变波近似。直接双俄歇衰变是通过分离敲出和。摆脱机制。对于3d−1空穴态的单俄歇衰变，一般认为占主导地位。通道应该是属于[1s22s22p63s23p63d10]4s24p45s、4s4p55s和.4s04p65s配置的级别。在这里，我们预测最强的通道来自4s24p34d5s，占36.3%。单俄歇衰变率。属于此配置的能级可以进一步衰减为Rb3+，从而得到。级联双俄歇衰变的很大一部分。此外，Rb发生直接双俄歇衰变的概率为。同样高是因为它有5s电子。预测了级联和直接双俄歇衰变的分支比。分别为50.60%和22.13%，导致Rb+(3d−1)的完全俄歇衰变以双俄歇衰变为主，占0.72.73%。
The complete Auger decay of Rb+(3d−1 ) including single and double processes is investigated using the.distorted wave approximation. The direct double Auger decay was calculated by separating the knock-out and.shake-off mechanisms. For single Auger decay of the 3d−1 hole state, it is generally believed that the dominant.channels should be levels belonging to the configurations of [1s22s22p63s23p63d10]4s24p45s, 4s4p55s, and.4s04p65s. Here we predict that the strongest channels originate from 4s24p34d5s, which accounts for 36.3%.of the single Auger decay rate. The levels belonging to this configuration can further decay to Rb3+, resulting in.a large fraction of cascade double Auger decay. Moreover, the probability of direct double Auger decay in Rb is.also high because of its 5s electron. The branching ratios of cascade and direct double Auger decay are predicted.to be 50.60% and 22.13%, respectively, resulting in the dominance of double Auger decay with a fraction of.72.73% in the complete Auger decay of Rb+(3d−1 ).