中国物理B ›› 2024, Vol. 33 ›› Issue (2): 23401-023401.doi: 10.1088/1674-1056/ad0b01

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

Xiaolong Zhu(朱小龙)1,2,†, Shucheng Cui(崔述成)3,4, Dadi Xing(邢大地)3,4, Jiawei Xu(徐佳伟)5, B. Najjari1, Dongmei Zhao(赵冬梅)1, Dalong Guo(郭大龙)1,2, Yong Gao(高永)1,2, Ruitian Zhang(张瑞田)1,2, Maogen Su(苏茂根)3,4, Shaofeng Zhang(张少锋)1,2, and Xinwen Ma(马新文)1,2,‡   

  1. 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 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;
    4 Joint Laboratory of Atomic and Molecular Physics, Northwest Normal University and Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730070, China;
    5 Advanced Energy Science and Technology, Guangdong Laboratory, Huizhou 516000, China
  • 收稿日期:2023-07-02 修回日期:2023-10-30 接受日期:2023-11-09 出版日期:2024-01-16 发布日期:2024-01-16
  • 通讯作者: Xiaolong Zhu, Xinwen Ma E-mail:zhuxiaolong@impcas.ac.cn;x.ma@impcas.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402400), the National Natural Science Foundation of China (Grant Nos. 11974358 and 11934004), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB34020000), and the Heavy Ion Research Facility in Lanzhou (HIRFL).

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

Xiaolong Zhu(朱小龙)1,2,†, Shucheng Cui(崔述成)3,4, Dadi Xing(邢大地)3,4, Jiawei Xu(徐佳伟)5, B. Najjari1, Dongmei Zhao(赵冬梅)1, Dalong Guo(郭大龙)1,2, Yong Gao(高永)1,2, Ruitian Zhang(张瑞田)1,2, Maogen Su(苏茂根)3,4, Shaofeng Zhang(张少锋)1,2, and Xinwen Ma(马新文)1,2,‡   

  1. 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 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;
    4 Joint Laboratory of Atomic and Molecular Physics, Northwest Normal University and Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730070, China;
    5 Advanced Energy Science and Technology, Guangdong Laboratory, Huizhou 516000, China
  • Received:2023-07-02 Revised:2023-10-30 Accepted:2023-11-09 Online:2024-01-16 Published:2024-01-16
  • Contact: Xiaolong Zhu, Xinwen Ma E-mail:zhuxiaolong@impcas.ac.cn;x.ma@impcas.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402400), the National Natural Science Foundation of China (Grant Nos. 11974358 and 11934004), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB34020000), and the Heavy Ion Research Facility in Lanzhou (HIRFL).

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 ${\rm S}^{q+}$-He and H$_{2}$ ($q=11$-15) collision systems at an impact energy of $q\times 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.

关键词: highly charged sulfur ion, charge exchange, state-selective cross sections, COLTRIMS

Abstract: 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 ${\rm S}^{q+}$-He and H$_{2}$ ($q=11$-15) collision systems at an impact energy of $q\times 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

中图分类号:  (Charge transfer)

  • 34.70.+e
95.30.Dr (Atomic processes and interactions)