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Chin. Phys. B, 2012, Vol. 21(6): 063401    DOI: 10.1088/1674-1056/21/6/063401
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

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)
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
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.
Keywords:  charge transfer      proton-rubidium collisions      cross section  
Received:  08 October 2011      Revised:  15 November 2011      Accepted manuscript online: 
PACS:  34.10.+x (General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))  
  34.70.+e (Charge transfer)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10979007, 11025417, 11179041, and 11004014) and the NSAF (Grant No. 10876043).
Corresponding Authors:  Qu Yi-Zhi     E-mail:  yzqu@gucas.ac.cn

Cite this article: 

Yan Ling-Ling(闫玲玲), Qu Yi-Zhi(屈一至), Liu Chun-Hua(刘春华), Zhang Yu(张宇), Wang Jian-Guo(王建国), and Buenker Robert J Nonradiative charge transfer in collisions of protons with rubidium atoms 2012 Chin. Phys. B 21 063401

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