Dielectronic Recombination and Trielectronic Recombination of Be-like ^(40)Ar^(14)+at the CSRm  

重离子冷却储存环CSRm上的类铍^(40)Ar^(14)+离子的双电子复合和三电子复合

作　　者：Huang Zhongkui Wen Weiqiang Wang Hanbing Xu Xin Zhu Linfan Wang shuxing Dou Lijun Zhu Xiaolong Yao ke Xu Tianheng Mao Lijun Li Jie Yang Jiancheng Yuan Youjinand Ma Xinwen 

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]Department of Modern Physics,University of Science and Technology of China,Hefei,230026,Anhui,China

出　　处：《IMP & HIRFL Annual Report》2017年第1期57-57,共1页中国科学院近代物理研究所和兰州重离子研究装置年报（英文版）

基　　金：National Natural Science Foundation of China(11320101003,91336102)。

摘　　要：Electron-ion recombination of Be-like ^(40)Ar^(14)+has been measured by employing the electron-ion merged-beams method at the cooler storage ring CSRm.The measured absolute recombination rate coefficients for collision energies from 0 to 60 eV are presented in Fig.1,covering all dielectronic recombination(DR)resonances associated with 2s^(2)→2s2p core transitions.In addition,strong trielectronic recombination(TR)resonances associated with 2s^(2)→2p^(2) core transitions were observed.Both DR and TR processes lead to series of peaks in the measured recombination spectrum,which have been identified by the Rydberg formula.Theoretical calculations of recombination rate coefficients were performed using the state-of-the-art multi-configuration Breit-Pauli(MCBP)atomic structure code AUTOSTRUCTURE to compare with the experimental results.The plasma rate coefficients for DR+TR of Ar14+were deduced from the measured electron-ion recombination rate coefficients in the temperature range from 10^(3) to 10^(7) K,and compared with calculated data from the literature.

关 键 词：formula. ELECTRONIC TRANSITIONS 

分 类 号：O56[理学—原子与分子物理]