Coupled-state calculations of positron-hydrogen scattering
- Department of Physics, Memorial University of Newfoundland, St. Johns, Newfoundland, A1B3X7 (CANADA)
An algebraic coupled-state calculation of positron-hydrogen scattering carried out with an enlarged eight-state (E8S) coupling scheme, that is composed of a sufficiently high number of short-ranged correlation terms and eight hydrogen and positronium states [(1s,2s,2p,3{bar p})H{minus}(1s,2s,2p,3{bar p})Ps], provides results of the phase shift and cross section, agreeing excellently with our accurate enlarged six pseudostate (E6PS) values in both e{sup +}-H and Ps(1s)-p entrance channels. Our results serve to assert that very accurate values of the phase shift and cross section in both entrance channels have been attained with our E6PS, E8PS, and E8S Harris-Nesbet calculations. The present E8S calculation supersedes our deficient modified enlarged six-state one done previously. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 528044
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 56; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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