Application of exterior complex scaling to positron-hydrogencollisions including rearrangement
Abstract
The first application of an exterior complex scaling method to an atomic scattering problem with distinct rearrangement channels is reported. Calculations are performed for positron-hydrogen collisions in an s-wave model employing an electron-positron potential of V{sub 12} = -(8+(r{sub 1}-r{sub 2}){sup 2}){sup 1/2}, using the time-independent propagating exterior complex scaling (PECS) method. This potential has the correct long-range Coulomb tail of the full problem and the results demonstrate that ECS-based methods can accurately calculate scattering, ionization and positronium formation cross sections in this three-body rearrangement collision.
- Authors:
- Publication Date:
- Research Org.:
- COLLABORATION - MurdochU./Australia
- OSTI Identifier:
- 929504
- Report Number(s):
- LBNL-63759
Journal ID: ISSN 1050-2947; PLRAAN; R&D Project: 409601; BnR: KC0301030; TRN: US0803601
- DOE Contract Number:
- DE-AC02-05CH11231
- Resource Type:
- Journal Article
- Journal Name:
- PhysicalReview A
- Additional Journal Information:
- Journal Volume: 77; Related Information: Journal Publication Date: 2008; Journal ID: ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74; CROSS SECTIONS; IONIZATION; POSITRONIUM; SCATTERING
Citation Formats
Bartlett, Philip L, Stelbovics, Andris T, Rescigno, Thomas N, and McCurdy, C William. Application of exterior complex scaling to positron-hydrogencollisions including rearrangement. United States: N. p., 2007.
Web.
Bartlett, Philip L, Stelbovics, Andris T, Rescigno, Thomas N, & McCurdy, C William. Application of exterior complex scaling to positron-hydrogencollisions including rearrangement. United States.
Bartlett, Philip L, Stelbovics, Andris T, Rescigno, Thomas N, and McCurdy, C William. 2007.
"Application of exterior complex scaling to positron-hydrogencollisions including rearrangement". United States. https://www.osti.gov/servlets/purl/929504.
@article{osti_929504,
title = {Application of exterior complex scaling to positron-hydrogencollisions including rearrangement},
author = {Bartlett, Philip L and Stelbovics, Andris T and Rescigno, Thomas N and McCurdy, C William},
abstractNote = {The first application of an exterior complex scaling method to an atomic scattering problem with distinct rearrangement channels is reported. Calculations are performed for positron-hydrogen collisions in an s-wave model employing an electron-positron potential of V{sub 12} = -(8+(r{sub 1}-r{sub 2}){sup 2}){sup 1/2}, using the time-independent propagating exterior complex scaling (PECS) method. This potential has the correct long-range Coulomb tail of the full problem and the results demonstrate that ECS-based methods can accurately calculate scattering, ionization and positronium formation cross sections in this three-body rearrangement collision.},
doi = {},
url = {https://www.osti.gov/biblio/929504},
journal = {PhysicalReview A},
issn = {1050-2947},
number = ,
volume = 77,
place = {United States},
year = {Thu Dec 06 00:00:00 EST 2007},
month = {Thu Dec 06 00:00:00 EST 2007}
}
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