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Symmetrized Amplitudes of Helium-Atom Double Photoionization

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Date

2002

Authors

Kheifets, Anatoli
Bray, Igor

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

A series of convergent close-coupling (CCC) calculations of the symmetrized amplitudes of the helium atom double photoionization (DPI) were carried out at several fixed excess energies and varying energy ratios. Gaussian fits obtained directly from the theory were provided. Utility of the 4P Gaussian parametrization was illustrated in the case of 40 eV excess energy with E1=35 eV and E2=5 eV. The resulting data were analyzed in detail.

Description

Keywords

Keywords: Atoms; Helium; Impact ionization; Matrix algebra; Numerical methods; Double photoionization; Gaussian ansatz; Ionization amplitude; Photoionization

Citation

URI

http://hdl.handle.net/1885/89687

Collections

Open Access Research

Source

Physical Review A: Atomic, Molecular and Optical Physics

Type

Journal article

Book Title

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