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.
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)
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).
