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2006•Journal of Physics B Atomic Molecular and Optical PhysicsRequires access

Doubly excited states of the Be atom in the MCRRPA

Lin‐Ru Wang, Ju-Tang Hsiao, Keh‐Ning Huang

Open publisher page 10 citations

Abstract

Photoionization parameters in neutral beryllium are calculated in the multiconfiguration relativistic random-phase approximation to resolve the interplay between relativistic and correlation effects in low-Z atoms or ions. Precise energies and widths of all five Rydberg series of low-lying doubly excited states (2pns)3,1Po1, (2pnd)3,1Po1 and (2pnd)3Do1 are given. Experimental studies on angular distribution of photoelectrons are suggested to obtain information on widths of some states, which cannot be obtained from total cross-section measurements.

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What this paper is about

Photoionization parameters in neutral beryllium are calculated in the multiconfiguration relativistic random-phase approximation to resolve the interplay between relativistic and correlation effects in low-Z atoms or ions. Precise energies and widths of all five Rydberg series of low-lying doubly excited states (2pns)3,1Po1, (2pnd)3,1Po1 and (2pnd)3Do1 are given. Experimental studies on angular distribution of photoelectrons are suggested to obtain information on widths of some states, which cannot be obtained from total cross-section measurements.

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Available abstract

Photoionization parameters in neutral beryllium are calculated in the multiconfiguration relativistic random-phase approximation to resolve the interplay between relativistic and correlation effects in low-Z atoms or ions. Precise energies and widths of all five Rydberg series of low-lying doubly excited states (2pns)3,1Po1, (2pnd)3,1Po1 and (2pnd)3Do1 are given. Experimental studies on angular distribution of photoelectrons are suggested to obtain information on widths of some states, which cannot be obtained from total cross-section measurements.

Key concepts: Physics, Excited state, Atomic physics, Atom (system on chip), Computer science, Embedded system

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