Model-potential Oppenheimer-Brinkman-Kramers approximation for K -shell electron capture in asymmetric collisions

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.1613· OSTI ID:5375753

Kuang, Y R ^[1]

---

1. Physics Department, Chengdu University of Science and Technology, Chengdu, Sichuan 610065, People's Republic of China (CN)

A theoretical method to calculate the {ital K}-shell electron-capture cross section in asymmetric collisions is developed. The correlation effect between the active and the passive electrons and the screening effect in the wave function of the active electron are all considered. Under the Oppenheimer-Brinkman-Kramers approximation, an analytical expression for the total capture cross section is obtained. The calculated results for H{sup +}--carbon, nitrogen, oxygen, neon, argon and He{sup 2+}-neon collisions, at the intermediate-energy region, show very good agreement with available experimental findings. A comparison with other theoretical results is given.

• OSTI ID: 5375753
• Journal Information: Physical Review A. General Physics; (United States), Vol. 44:3; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ION-ATOM COLLISIONS
CARBON
HELIUM IONS
HYDROGEN IONS 1 PLUS
ELECTRON CAPTURE
NEON
NITROGEN
OXYGEN
BRINKMAN-KRAMERS APPROXIMATION
CROSS SECTIONS
ELECTRON CORRELATION
K SHELL
ATOM COLLISIONS
CAPTURE
CATIONS
CHARGED PARTICLES
COLLISIONS
CORRELATIONS
ELECTRONIC STRUCTURE
ELEMENTS
FLUIDS
GASES
HYDROGEN IONS
ION COLLISIONS
IONS
NONMETALS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena