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Total cross sections of positronben sodium scattering at low energies |
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| Authors: | Cheng Yong-Jun Zhou Ya-Jun and Jiao Li-Guang |
| Institution: | The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China;The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China;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 |
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