A hyperspherical close-coupling calculation of photoionization of He-like ions

Journal Article · Sat May 01 04:00:00 EDT 1993 · Bulletin of the American Physical Society

OSTI ID:281509

Zhou, Bin; Lin, C D; Tang, J Z; Watanabe, S; Matsuzawa, M

Using the recently developed hyperspherical close-coupling method, an extensive calculation of photoionization cross sections for the He atom and He-like ions, Li{sup +} and C{sup 4+}, in the energy range both below the N=2 threshold as well as between the N=2,3 thresholds, is carried out. Complicated resonance structures in the spectra are readily identified with autoionizing doubly excited states associated with the N=2 or 3 manifold. The present result is compared with other accurate theoretical calculations. From analyzing the resonance structures in the photoionization spectra of the two-electron systems with different nuclear charge, the effect of the interplay between the electron-nucleus and electron-electron interactions on doubly excited states is studied.

• OSTI ID: 281509
• Report Number(s): CONF-9305421--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 38; ISSN 0003-0503; ISSN BAPSA6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CALCULATION METHODS
CARBON IONS
CROSS SECTIONS
HELIUM
LITHIUM IONS
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
PHOTON-ION COLLISIONS