Electron-correlation effects in double-electron-capture collisions of 60-keV C sup 6+ with He

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.5396· OSTI ID:6046586

Stolterfoht, N; Sommer, K ^[1]; Swenson, J K; Havener, C C; Meyer, F W ^[2]

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1. Hahn-Meitner-Institut Berlin GmbH, Berlin (Federal Republic of Germany)
2. Oak Ridge National Laboratory, Physics Division, Oak Ridge, TN (USA)

The method of zero-degree Auger spectroscopy was used to measure cross sections for the production of {ital K} and {ital L} Auger electrons by double electron capture in 60-keV C{sup 6+}+He collisions. Corresponding atomic-structure calculations were performed to determine the related Auger and x-ray transition rates. The resulting Auger yields are found to deviate significantly from unity. The Auger yields were applied to evaluate cross sections for the production of the configuration 3{ital lnl}{prime} ({ital n}=3 to 5) and 2{ital lnl}{prime} ({ital n}=3 to 8). These data are found to compare well with experimental results obtained previously for the isocharged system O{sup 6+}+He. Comparison is also made with recent calculations including the electron-electron interaction. It is shown that electron-correlation effects play a significant role for double electron capture in the studied collision system.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6046586
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 42:9; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
AUGER ELECTRON SPECTROSCOPY
CAPTURE
CARBON IONS
CHARGED PARTICLES
COLLISIONS
CORRELATIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELECTRON CORRELATION
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
HELIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
K SHELL
KEV RANGE
KEV RANGE 10-100
L SHELL
MANY-BODY PROBLEM
MULTICHARGED IONS
NONMETALS
RARE GASES
SPECTROSCOPY
TWO-BODY PROBLEM