Double K-shell photoionization of atomic beryllium

Journal Article · Tue Nov 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.053417· OSTI ID:22093566

Yip, F. L. ^[1]; Martin, F. ^[1]; McCurdy, C. W. ^[2]; Rescigno, T. N. ^[3]

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1. Departamento de Quimica, Modulo 13, Universidad Autonoma de Madrid, E-28049 Madrid (Spain)
2. Department of Chemistry, University of California, Davis, California 95616 (United States)
3. Lawrence Berkeley National Laboratory, Chemical Sciences, and Ultrafast X-ray Science Laboratory, Berkeley, California 94720 (United States)

Double photoionization of the core 1s electrons in atomic beryllium is theoretically studied using a hybrid approach that combines orbital and grid-based representations of the Hamiltonian. The {sup 1} S ground state and {sup 1} P final state contain a double occupancy of the 2s valence shell in all configurations used to represent the correlated wave function. Triply differential cross sections are evaluated, with particular attention focused on a comparison of the effects of scattering the ejected electrons through the spherically symmetric valence shell with similar cross sections for helium, representing a purely two-electron target with an analogous initial-state configuration.

• OSTI ID: 22093566
• Journal Information: Physical Review. A, Vol. 84, Issue 5; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BERYLLIUM
COMPARATIVE EVALUATIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRONS
GROUND STATES
HAMILTONIANS
HELIUM
K SHELL
P STATES
PHOTOIONIZATION
S STATES
SCATTERING
SYMMETRY
VALENCE
WAVE FUNCTIONS