The n-resolved single-electron capture in slow O^(6+)-Ne collisions  

作　　者：崔述成 邢大地 朱小龙 苏茂根 高永 郭大龙 赵冬梅 张少锋 符彦飙 马新文 Shucheng Cui;Dadi Xing;Xiaolong Zhu;Maogen Su;Yong Gao;Dalong Guo;Dongmei Zhao;Shaofeng Zhang;Yanbiao Fu;Xinwen Ma(Key Laboratory of Atomic and Molecular Physics Functional Material of Gansu Province,College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]Key Laboratory of Atomic and Molecular Physics Functional Material of Gansu Province,College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,China [2]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics B》2024年第7期16-20,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11934004,12064040,and 11974358);the National Key Research and Development Program of China(Grant No.2022YFA1602500);Strategic Key Research Program of the Chinese Academy of Sciences(Grant No.XDB34020000)。

摘　　要：A study of single-electron capture(SEC) in 18-240 keV O^(6+)-Ne collisions has been conducted employing a combination of experimental and theoretical methodologies.Utilizing a reaction microscope,state-selective SEC cross sections and projectile scattering angle distributions were obtained.The translational energy spectra for SEC reveal the prevailing capture into n=3 states of the projectile ion,with a minor contribution from n=4 states.Notably,as the projectile's energy increases,the relative contribution of SEC n=4 states increases while that of SEC n=3 states diminishes.Furthermore,we computed state-selective relative cross sections and angular differential cross sections employing the classical molecular Coulomb over-the-barrier model(MCBM) and the multichannel Landau-Zener(MCLZ) model.A discernible discrepancy between the state-selective cross sections from the two theoretical models is apparent for the considered impact energies.However,regarding the angular differential cross sections,an overall agreement was attained between the current experimental results and the theoretical results from the MCLZ model.

关 键 词：charge exchange state-selective cross sections angular differential cross sections COLTRIMS 

分 类 号：O56[理学—原子与分子物理]