Convergent close-coupling calculations of low-energy positron–atomic-hydrogen scattering
- 1 December 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 48 (6), 4787-4789
- https://doi.org/10.1103/physreva.48.4787
Abstract
The convergent close-coupling approach developed by the authors is applied to positron scattering from atomic hydrogen below the first excitation threshold. In this approach the multichannel-expansion one-electron states are obtained by diagonalizing the target Hamiltonian in a large Laguerre basis. It is demonstrated that this expansion of the scattering wave function is sufficient to reproduce the very accurate low-energy variational results, provided target states with l≤15 are included in the expansions.Keywords
This publication has 9 references indexed in Scilit:
- Calculation of the total ionization cross section and spin asymmetry in electron-hydrogen scattering from threshold to 500 eVPhysical Review Letters, 1993
- Convergent close-coupling calculations of electron-hydrogen scatteringPhysical Review A, 1992
- Explicit demonstration of the convergence of the close-coupling method for a Coulomb three-body problemPhysical Review Letters, 1992
- Positron scattering by atomic hydrogen at intermediate energiesJournal of Physics B: Atomic, Molecular and Optical Physics, 1990
- Electron scattering by atomic hydrogen at intermediate energies. I. Integrated elastic, 1s-2s and 1s-2p cross sectionsJournal of Physics B: Atomic, Molecular and Optical Physics, 1989
- Electron-hydrogen-atom scattering at intermediate energiesJournal of Physics B: Atomic, Molecular and Optical Physics, 1988
- Algebraic variational method — a quantitative assessment in e±-H scatteringPhysics Letters A, 1975
- Rigorous precision-wave positron-hydrogen scattering calculationPhysical Review A, 1974
- Generalized Hylleraas Calculation of Positron-Hydrogen ScatteringPhysical Review A, 1971