Spectral representation of the three-body Coulomb problem. II. Autoionizing doubly excited states of unnatural parity in helium

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.042528· OSTI ID:21408616

Eiglsperger, Johannes; Piraux, Bernard; Madronero, Javier ^[1]

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1. Physik Department, Technische Universitaet Muenchen, D-85747 Garching (Germany)

A spectral approach of configuration interaction type is used to evaluate energies and widths for a wide range of singlet and triplet P{sup e} resonance states of helium up to the eighth single ionization threshold. While the present data are in excellent agreement with existing theoretical results (below the N=3-5 ionization threshold) obtained within an explicitly correlated approach, there are substantial differences with the energies, the widths, and the number of resonances obtained with the stabilization method.

• OSTI ID: 21408616
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
CONFIGURATION INTERACTION
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
HELIUM
IONIZATION
MANY-BODY PROBLEM
MULTIPLETS
NONMETALS
PARITY
PARTICLE PROPERTIES
RARE GASES
RESONANCE
STABILIZATION
THREE-BODY PROBLEM
TRIPLETS