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Title: Application of exterior complex scaling to positron-hydrogencollisions including rearrangement

Journal Article · · PhysicalReview A
OSTI ID:929504

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.

Research Organization:
COLLABORATION - MurdochU./Australia
DOE Contract Number:
DE-AC02-05CH11231
OSTI ID:
929504
Report Number(s):
LBNL-63759; PLRAAN; R&D Project: 409601; BnR: KC0301030; TRN: US0803601
Journal Information:
PhysicalReview A, Vol. 77; Related Information: Journal Publication Date: 2008; ISSN 1050-2947
Country of Publication:
United States
Language:
English

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