Total cross sections of positron–sodium scattering at low energies

doi:10.1088/1674-1056/21/1/013405

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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Total cross sections of positron–sodium scattering at low energies

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