Positron Impact Transitions of Atomic Sodium

We present a new investigation of elastic and inelastic positron-sodium scattering by using the coupled-channel optical method (CCO) at an incident energy region of 2-100eV. The ionization continuum and positronium formation channels have been included via a complex equivalent-local optical potentia...

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Bibliographic Details
Published in:Chinese physics letters 2011-09, Vol.28 (9), p.093402-1-093402-4
Main Authors: Cheng, Yong-Jun (勇军 程), Zhou, Ya-Jun (雅君 周)
Format: Article
Language:English
Subjects:
Channels
Cross sections
Elastic scattering
Equivalence
Inelastic scattering
Ionization
Mathematical analysis
Sodium
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Summary:We present a new investigation of elastic and inelastic positron-sodium scattering by using the coupled-channel optical method (CCO) at an incident energy region of 2-100eV. The ionization continuum and positronium formation channels have been included via a complex equivalent-local optical potential. The present calculations are compared with available theoretical data and our investigation indicates that the inclusion of ionization and Ps-formation channels in the present calculations has a significant effect on the cross sections of elastic and inelastic positron-sodium scattering at lower energies.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/28/9/093402