State-selective charge exchange cross sections in collisions of highly-charged sulfur ions with helium and molecular hydrogen

被引：4

作者：

Zhu, Xiaolong ^{[1
,2
]}

Cui, Shucheng ^{[3
,4
]}

Xing, Dadi ^{[3
,4
]}

Xu, Jiawei ^{[5
]}

Najjari, B. ^{[1
]}

Zhao, Dongmei ^{[1
]}

Guo, Dalong ^{[1
,2
]}

Gao, Yong ^{[1
,2
]}

Zhang, Ruitian ^{[1
,2
]}

Su, Maogen ^{[3
,4
]}

Zhang, Shaofeng ^{[1
,2
]}

Ma, Xinwen ^{[2
]}

机构：

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

[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China

[3] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China

[4] Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China

[5] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China

来源：

CHINESE PHYSICS B | 2024年 / 33卷 / 02期

关键词：

highly charged sulfur ion; charge exchange; state-selective cross sections; COLTRIMS; 34.70.+e; 95.30.Dr; ONE-ELECTRON CAPTURE; X-RAY; MOMENTUM SPECTROSCOPY; RECOIL-ION; EMISSION; HE; LINE;

D O I：

10.1088/1674-1056/ad0b01

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The state-selective cross section data are useful for understanding and modeling the x-ray emission in celestial observations. In the present work, using the cold target recoil ion momentum spectroscopy, for the first time we investigated the state-selective single electron capture processes for S q+-He and H2 (q = 11-15) collision systems at an impact energy of q x 20 keV and obtained the relative state-selective cross sections. The results indicate that only a few principal quantum states of the projectile energy level are populated in a single electron capture process. In particular, the increase of the projectile charge state leads to the population of the states with higher principal quantum numbers. It is also shown that the experimental averaged n-shell populations are reproduced well by the over-barrier model. The database is openly available in Science Data Bank at 10.57760/sciencedb.j00113.00091.

引用

页数：5

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