Two-center convergent-close-coupling calculations for positron-sodium collisions
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Positron scattering from sodium atoms has been studied theoretically with the use of the two-center convergentclose-coupling method. The target has been treated in the framework of a one-active-electron approach. The positronium formation channels are taken into account explicitly utilizing Laguerre-based states. Our calculations are overall in good agreement with the previous theoretical results, and so the discrepancy with experiment at low energies remains unresolved.
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