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

作　　者：朱小龙 崔述成 邢大地 徐佳伟 B.Najjari 赵冬梅 郭大龙 高永 张瑞田 苏茂根 张少锋 马新文 Xiaolong Zhu;Shucheng Cui;Dadi Xing;Jiawei Xu;B.Najjari;Dongmei Zhao;Dalong Guo;Yong Gao;Ruitian Zhang;Maogen Su;Shaofeng Zhang;Xinwen Ma(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 100049,China;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 Modern Physics,Chinese Academy of Sciences,Lanzhou 730070,China;Advanced Energy Science and Technology,Guangdong Laboratory,Huizhou 516000,China)

机构地区：[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

出　　处：《Chinese Physics B》2024年第2期29-33,共5页中国物理B（英文版）

基　　金：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);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 S^(q+)–He and H_(2)(q=11–15)collision systems at an impact energy of q×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 

分 类 号：O56[理学—原子与分子物理]