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Chin. Phys. B, 2012, Vol. 21(1): 013405    DOI: 10.1088/1674-1056/21/1/013405
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Total cross sections of positron–sodium scattering at low energies

Cheng Yong-Jun(程勇军), Zhou Ya-Jun(周雅君), and Jiao Li-Guang(焦利光)
The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China
Abstract  A new calculation for the total cross section of positron-sodium scattering is performed in an energy range down to a few tenths of one electron volt using the coupled-channel optical method. The ionization continuum and the positronium formation channels are included via an equivalent-local complex potential. The role played by the break-up and rearrangement processes in the low energy positron-sodium scattering is also investigated. The total scattering cross section is reported and compared with the available theoretical and experimental data.
Keywords:  positron      sodium      cross section  
Received:  26 April 2011      Revised:  09 June 2011      Accepted manuscript online: 
PACS:  34.80.Uv (Positron scattering)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10674055).

Cite this article: 

Cheng Yong-Jun(程勇军), Zhou Ya-Jun(周雅君), and Jiao Li-Guang(焦利光) Total cross sections of positron–sodium scattering at low energies 2012 Chin. Phys. B 21 013405

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