Strongly perturbed state-selective charge exchange between slow Ar8+ and He

被引：8

作者：

Zhang, R. T. ^{[1
,4
]}

Gao, J. W. ^{[2
]}

Zhang, Y. W. ^{[5
]}

Guo, D. L. ^{[1
,4
]}

Gao, Y. ^{[1
,4
]}

Zhu, X. L. ^{[1
,4
]}

Xu, J. W. ^{[1
]}

Zhao, D. M. ^{[1
]}

Yan, S. ^{[1
,4
]}

Xu, S. ^{[1
,4
]}

Zhang, S. F. ^{[1
,4
]}

Wu, Y. ^{[3
,5
]}

Wang, J. G. ^{[3
]}

Ma, X. ^{[1
,4
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[2] Hangzhou Normal Univ, Sch Phys, Hangzhou 311121, Peoples R China

[3] Inst Appl Phys & Computat Math, Key Lab Computat Phys, Beijing 100088, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW RESEARCH | 2023年 / 5卷 / 02期

基金：

中国国家自然科学基金;

关键词：

DIFFERENTIAL CROSS-SECTIONS; ION-MOMENTUM SPECTROSCOPY; SINGLE-ELECTRON CAPTURE; ATOMIC OUTER SHELLS; RECOIL-ION; COLLISIONAL ALIGNMENT; ORIENTATION; H-2; EMISSION; HYDROGEN;

D O I：

10.1103/PhysRevResearch.5.023123

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an experimental and theoretical study of state-selective charge exchange processes in Ar8+ on He collisions at 1 and 3 keV/amu, benchmarking the fundamental electron capture dynamics under strong perturbations. The quantum-state selectivity has been experimentally resolved for one 1s electron of He capture into 4s, 4p, 4d + 4 f, and 5s states of Ar7+ ion along with the corresponding scattering angle differential cross sections. By comparing to theoretical calculations with a two-active-electron semiclassical asymptotic-state close-coupling approach, we are able to verify the important role of electronic correlations during the collisions and that the impact parameter sensitive transition probability significantly mediates the state-selective specifics.

引用

页数：7

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