Theory of electron capture from a hydrogenlike ion by a bare ion: Intermediate-state contributions to the amplitude
Electron capture from a hydrogenlike ion of large nuclear charge Z/sub T/e by a bare ion of charge Z/sub P/e moving with speed v has been studied using the strong-potential Born approximation to the amplitude. Under the conditions Z/sub P/<..1s cross section and at the same time makes peaking approximations to the amplitude more realistic, even for low v. The specific cases of Z/sub T/ = 6, 10, and 18 are treated over the velocity range Z/sub T//3< or approx. =hv/e/sup 2/< or approx. =Z/sub T//(0.3). Instituting a one-electron model, K-shell capture cross sections and probabilities for protons on carbon, neon, and argon are calculated and compared with experiment. The strong-potential Born theory is seen to give a good representation of the data. Total cross sections for 1s..-->..1s capture for Z/sub P/ = Z/sub T/ = 1 are also presented.
- Research Organization:
- Behlen Laboratory of Physics, University of Nebraska-Lincoln, Lincoln, Nebraska 68588
- OSTI ID:
- 6034051
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 27:5; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON IONS
ATOMIC IONS
BORN APPROXIMATION
CAPTURE
CARBON IONS
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELECTRONIC STRUCTURE
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ION COLLISIONS
IONS
K SHELL
NEON IONS
TOTAL CROSS SECTIONS