Photodouble Ionization Studies of the Ne(2s²) State under Unequal Energy Sharing Conditions.

Abstract

The triple differential cross section (TDCS) of the He2+(1s−2) and Ne2+(2s−2) states has been studied under unequal energy sharing conditions and perpendicular geometry, for a ratio of about 3 between the energies of the two ejected electrons. The dynamical quantities which govern the photodouble ionization (PDI) process, i.e. The squared moduli of the gerade and ungerade complex amplitudes and the cosine of their relative phase, have been extracted from the experimental data. The results from the two targets have been compared between themselves as well as with the theoretical predictions of the SC3 and convergent close coupling (CCC) calculations. This work represents a joint experimental and theoretical approach to the investigation of PDI of atomic systems with more than two electrons.

Department(s)

Physics

Sponsor(s)

National Agency for the Promotion of Science and Technology (Argentina)
Italian National Research Council
International Centre for Theoretical Physics
MIUR FIRB

Keywords and Phrases

Atomic Physics; Excited States; Molecular Physics; Photoionization of Atoms and Ions; Scattering of Atoms and Molecules; Self-Consistent-Field Methods; Chemical reactions

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 Institute of Physics - IOP Publishing, All rights reserved.

Publication Date

01 Apr 2006

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