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Chin. Phys. B, 2018, Vol. 27(12): 123101    DOI: 10.1088/1674-1056/27/12/123101
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Theoretical study of the radiative decay processes in H+(D+, T+)-Be collisions

Huilin Wei(魏惠琳)1, Xiaojun Liu(刘晓军)2
1 Beijing Sport University, Beijing 100084, China;
2 Department of Physics, College of Science, Qiqihar University, Qiqihar 161006, China
Abstract  

The potential energy curves of X1Σ+, A1Σ+, C1Σ+, and B1Π are calculated with high-level MRDCI method, and the calculated spectroscopic constants of those states are in good agreement with most recent experimental data. On the basis of high precision PECs, the radiative processes of H++Be collisions are studied by using the fully quantum, optical potential and semiclassical methods in the energy ranges of 10-8 eV/u-0.1 eV/u, and the radiative decay, the radiative charge transfer, and the radiative association cross-sections are computed. It is found that the radiative association process is dominant in the energy region of 10-8 eV/u-0.02 eV/u, while radiative charge transfer becomes important at higher energies. Rich resonance structures are present in the radiative association and charge transfer cross-sections in the whole energy region considered, which result from the interaction between the quasi-bound rovibrational (J, v) states in the entrance channel with the final continuum state. Significant isotope effects have been found in the radiative decay processes of H++Be collisions.

Keywords:  optical-potential method      radiative charge transfer      radiative association      radiative decay      isotope effects  
Received:  30 August 2018      Revised:  10 October 2018      Accepted manuscript online: 
PACS:  31.50.Df (Potential energy surfaces for excited electronic states)  
  31.15.aj (Relativistic corrections, spin-orbit effects, fine structure; hyperfine structure)  
  31.15.ag (Excitation energies and lifetimes; oscillator strengths)  
Fund: 

Project supported by the Natural Science Foundation of Heilongjiang Province of China (Grant No. A2015011) and the Scientific Research Plan Projects of Heilongjiang Educational Department, China (Grant No. 135209258).

Corresponding Authors:  Xiaojun Liu     E-mail:  xiaojunliuqqhr@163.com

Cite this article: 

Huilin Wei(魏惠琳), Xiaojun Liu(刘晓军) Theoretical study of the radiative decay processes in H+(D+, T+)-Be collisions 2018 Chin. Phys. B 27 123101

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