Six-state algebraic close-coupling calculation of positron-hydrogen scattering at low energies
- 1 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 52 (2) , 1186-1195
- https://doi.org/10.1103/physreva.52.1186
Abstract
We did the Harris-Nesbet algebraic close-coupling calculation for positron-hydrogen scattering at low energies with the (1s,2s)H-(1s,2s)Ps, (1s,2s,2p)H-(1s,2s)Ps, and (1s,2s,2p)H-(1s,2s,2p)Ps coupling schemes. Cross sections of elastic scattering, positronium formation, and Ps(1s)-p elastic scattering were obtained for L=0,1,2,3,4,5,6 partial waves. The integrated cross sections for the relevant processes were then estimated. We compared our six-state close-coupling results with the ones calculated by solving the Lippmann-Schwinger coupled equations in momentum space. Many special features were seen in these cross sections.Keywords
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