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Satellite structure of the xenon valence shell by electron momentum spectroscopy

Technical Report:

Abstract

Momentum distributions and spectroscopic factors are obtained in a high resolution electron momentum spectroscopy (EMS) study of xenon at 1000 eV. The shapes and relative magnitudes of the momentum profiles are in excellent agreement with distorted-wave impulse approximations using the target Dirac-Fock approximation. The DWDF approximation accurately describes the relative magnitudes of the 5p and 5s manifold cross sections as well as the shape of the 5s cross section. The use of nonrelativistic Hartree-Fock wavefunctions gives significantly poorer fits to the data. Spectroscopic factors for transitions belonging to the {sup 2}S{sup e}{sub 1/2},P{sup 0}{sub 1/2,3/2}, and {sup 2}D{sup 3}{sub 3/2,5/2} manifolds are assigned up to a separation energy of 45 eV. The spectroscopic strength for the lowest 5s transition is 0.345 {+-} 0.010 whereas that for the ground state 5p transition is 0.96 {+-} 0.02. The 5s strength in the continuum above 33.1 eV is 0.115 {+-} 0.025 and that for the 5p manifold is only 0.03{+-} 0.01. The first momentum profiles belong to excited {sup 2}P{sup o} and {sup 2}D{sup e} manifolds are obtained. The latter, which must be entirely due to d-wave correlations in the xenon ground state, are in good agreement with DF 5d momentum profiles. Comparison  More>>
Publication Date:
May 01, 1992
Product Type:
Technical Report
Report Number:
ESM-43
Reference Number:
SCA: 663110; 663540; PA: AIX-24:003679; SN: 93000913847
Resource Relation:
Other Information: PBD: May 1992
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ELECTRON SPECTROSCOPY; ANGULAR MOMENTUM; XENON; CROSS SECTIONS; DWBA; ELECTRONIC STRUCTURE; EV RANGE 100-1000; EXPERIMENTAL DATA; 663110; 663540; GENERAL AND AVERAGE PROPERTIES OF NUCLEI AND NUCLEAR ENERGY LEVELS; A = 39-58
Sponsoring Organizations:
Australian Research Council, Canberra, ACT (Australia)
OSTI ID:
10109139
Research Organizations:
Flinders Univ. of South Australia, Adelaide, SA (Australia). Electronic Structure of Materials Centre
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE93609993; TRN: AU9212900003679
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[25] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Braidwood, S, Brunger, M, and Weigold, E. Satellite structure of the xenon valence shell by electron momentum spectroscopy. Australia: N. p., 1992. Web.
Braidwood, S, Brunger, M, & Weigold, E. Satellite structure of the xenon valence shell by electron momentum spectroscopy. Australia.
Braidwood, S, Brunger, M, and Weigold, E. 1992. "Satellite structure of the xenon valence shell by electron momentum spectroscopy." Australia.
@misc{etde_10109139,
title = {Satellite structure of the xenon valence shell by electron momentum spectroscopy}
author = {Braidwood, S, Brunger, M, and Weigold, E}
abstractNote = {Momentum distributions and spectroscopic factors are obtained in a high resolution electron momentum spectroscopy (EMS) study of xenon at 1000 eV. The shapes and relative magnitudes of the momentum profiles are in excellent agreement with distorted-wave impulse approximations using the target Dirac-Fock approximation. The DWDF approximation accurately describes the relative magnitudes of the 5p and 5s manifold cross sections as well as the shape of the 5s cross section. The use of nonrelativistic Hartree-Fock wavefunctions gives significantly poorer fits to the data. Spectroscopic factors for transitions belonging to the {sup 2}S{sup e}{sub 1/2},P{sup 0}{sub 1/2,3/2}, and {sup 2}D{sup 3}{sub 3/2,5/2} manifolds are assigned up to a separation energy of 45 eV. The spectroscopic strength for the lowest 5s transition is 0.345 {+-} 0.010 whereas that for the ground state 5p transition is 0.96 {+-} 0.02. The 5s strength in the continuum above 33.1 eV is 0.115 {+-} 0.025 and that for the 5p manifold is only 0.03{+-} 0.01. The first momentum profiles belong to excited {sup 2}P{sup o} and {sup 2}D{sup e} manifolds are obtained. The latter, which must be entirely due to d-wave correlations in the xenon ground state, are in good agreement with DF 5d momentum profiles. Comparison is made with several many-body calculations and agreement with the latest relativistic calculation is very good. 26 refs., 3 tabs., 5 figs.}
place = {Australia}
year = {1992}
month = {May}
}