Resonant electron scattering and dielectronic recombination in two-center atomic systems
Resonant electron scattering and dielectronic recombination in two-center atomic systems
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DOI：
10.1103/physreva.98.012710
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发表时间：
2018-05
影响因子：
2.9
通讯作者：
A. Eckey;A. Jacob;A. Voitkiv;Carsten Müller
中科院分区：
文献类型：
--
作者：
A. Eckey;A. Jacob;A. Voitkiv;Carsten Müller
研究了在邻近原子存在的情况下与离子的电子散射和介电子复合。假设入射电子被离子捕获，导致原子的共振激发，然后原子可能通过电子再发射或辐射衰变来稳定。结果表明，原子的参与在定量和定性上都能强烈地影响电子散射和复合的过程。考虑了各种离子-原子系统和电子跃迁。特别地，我们证明了反向角度下的电子散射可能会被强烈增强，并推导了双中心介电子复合的标度行为与参与原子态的主量子数。
Electron scattering and dielectronic recombination with an ion in the presence of a neighboring atom is studied. The incident electron is assumed to be captured by the ion, leading to resonant excitation of the atom which afterwards may stabilize either by electron re-emission or radiative decay. We show that the participation of the atom can strongly affect, both quantitatively and qualitatively, the corresponding processes of electron scattering and recombination. Various ion-atom systems and electronic transitions are considered. In particular we show that electron scattering under backward angles may be strongly enhanced and derive the scaling behavior of two-center dielectronic recombination with the principal quantum numbers of the participating atomic states.