中国物理B ›› 2012, Vol. 21 ›› Issue (6): 63401-063401.doi: 10.1088/1674-1056/21/6/063401

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Nonradiative charge transfer in collisions of protons with rubidium atoms

闫玲玲a, 屈一至a, 刘春华b c, 张宇b, 王建国b, Buenker Robert Jd   

  1. a. College of Material Sciences and Optoelectronic Technology, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;
    b. The Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    c. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    d. Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universität Wuppertal, D-42097 Wuppertal, Germany
  • 收稿日期:2011-10-08 修回日期:2011-11-15 出版日期:2012-05-01 发布日期:2012-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10979007, 11025417, 11179041, and 11004014) and the NSAF (Grant No. 10876043).

Nonradiative charge transfer in collisions of protons with rubidium atoms

Yan Ling-Ling(闫玲玲)a), Qu Yi-Zhi(屈一至)a)†, Liu Chun-Hua(刘春华)b)c), Zhang Yu(张宇)b), Wang Jian-Guo(王建国)b), and Buenker Robert Jd)   

  1. a. College of Material Sciences and Optoelectronic Technology, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;
    b. The Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    c. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    d. Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universität Wuppertal, D-42097 Wuppertal, Germany
  • Received:2011-10-08 Revised:2011-11-15 Online:2012-05-01 Published:2012-05-01
  • Contact: Qu Yi-Zhi E-mail:yzqu@gucas.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10979007, 11025417, 11179041, and 11004014) and the NSAF (Grant No. 10876043).

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摘要： The nonradiative charge-transfer cross sections for protons colliding with Rb(5s) atoms are calculated by using the quantum-mechanical molecularorbital close-coupling method in an energy range of 10-3 keV-10 keV. The total and state-selective charge-transfer cross sections are in good agreement with the experimental data in the relatively low energy region. The importance of rotational coupling for chargetransfer process is stressed. Compared with the radiative charge-transfer process, nonradiative charge transfer is a dominant mechanism at energies above 15 eV. The resonance structures of state-selective charge-transfer cross sections arising from the competition among channels are analysed in detail. The radiative and nonradiative charge-transfer rate coefficients from low to high temperature are presented.

关键词: charge transfer, proton-rubidium collisions, cross section

Abstract: The nonradiative charge-transfer cross sections for protons colliding with Rb(5s) atoms are calculated by using the quantum-mechanical molecularorbital close-coupling method in an energy range of 10-3 keV-10 keV. The total and state-selective charge-transfer cross sections are in good agreement with the experimental data in the relatively low energy region. The importance of rotational coupling for chargetransfer process is stressed. Compared with the radiative charge-transfer process, nonradiative charge transfer is a dominant mechanism at energies above 15 eV. The resonance structures of state-selective charge-transfer cross sections arising from the competition among channels are analysed in detail. The radiative and nonradiative charge-transfer rate coefficients from low to high temperature are presented.

Key words: charge transfer, proton-rubidium collisions, cross section

中图分类号:  (General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))

  • 34.10.+x
34.70.+e (Charge transfer)