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

朱小龙 ¹崔述成 ²邢大地 ²徐佳伟 ³B.Najjari ⁴赵冬梅 ⁴郭大龙 ¹高永 ¹张瑞田 ¹苏茂根 ²张少锋 ¹马新文¹

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作者信息

1. Institute of Modem Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China
2. Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province,College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,China;Joint Laboratory of Atomic and Molecular Physics,Northwest Normal University and Institute of Modem Physics,Chinese Academy of Sciences,Lanzhou 730070,China
3. Advanced Energy Science and Technology,Guangdong Laboratory,Huizhou 516000,China
4. Institute of Modem Physics,Chinese Academy of Sciences,Lanzhou 730000,China
折叠

Abstract

The state-selective cross section data are useful for understanding and modeling the x-ray emission in celestial obser-vations.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 Sq+-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.

Key words

highly charged sulfur ion/charge exchange/state-selective cross sections/COLTRIMS

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基金项目

National Key Research and Development Program of China(2017YFA0402400)

National Natural Science Foundation of China(11974358)

National Natural Science Foundation of China(11934004)

Strategic Priority Research Program of the Chinese Academy of Sciences(XDB34020000)

Heavy Ion Research Facility in Lanzhou(HIRFL)()

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量32

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