(e, 2e) triple differential cross-sections for ionization beyond helium: the neon case at large energy transfer

A Naja; E M Staicu-Casagrande; A Lahmam-Bennani; M A Stevenson; Birgit Lohmann; C Dal Cappello; K Bartschat; A Kheifets; I Bray; D V Fursa

doi:10.1088/0953-4075/41/8/085205

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(e, 2e) triple differential cross-sections for ionization beyond helium: the neon case at large energy transfer

Journal article

Peer reviewed

(e, 2e) triple differential cross-sections for ionization beyond helium: the neon case at large energy transfer

A Naja, E M Staicu-Casagrande, A Lahmam-Bennani, M A Stevenson, Birgit Lohmann, C Dal Cappello, K Bartschat, A Kheifets, I Bray and D V Fursa

Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.41(8), 085205

2008

DOI: https://doi.org/10.1088/0953-4075/41/8/085205

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Abstract

e, 2e

We report new coplanar (e, 2e) results for ionization of the He 1s and Ne 2p and 2s subshells under kinematics which have remained rather unexplored to date and characterized by large energy transfer and close to minimum momentum transfer from the projectile to the target. The experimental results obtained in two laboratories are used as a sensitive test of a number of state-of-the-art available theoretical models for multi-electron atoms. The He results are in excellent agreement with convergent close-coupling predictions as well as with distorted-wave + Gamow and hybrid distorted-wave + R-matrix models. In the Ne case, an overall satisfactory agreement with experiments is obtained for all considered models. The importance of post-collisional interaction effects is demonstrated whereas second-order effects in the projectile-target interaction at small distances are shown to be negligibly small. Remaining discrepancies between theories and experiments are discussed.

Details

Title: (e, 2e) triple differential cross-sections for ionization beyond helium: the neon case at large energy transfer
Authors: A Naja (Author) - Laboratoire des Collisions Atomiques et Moléculaires, France
E M Staicu-Casagrande (Author) - Laboratoire des Collisions Atomiques et Moléculaires, France
A Lahmam-Bennani (Author) - Laboratoire des Collisions Atomiques et Moléculaires, France
M A Stevenson (Author) - University of Adelaide
Birgit Lohmann (Author) - University of Adelaide
C Dal Cappello (Author) - Laboratoire de Physique Moléculaire et des Collisions, France
K Bartschat (Author) - Drake University, United States
A Kheifets (Author) - Australian National University
I Bray (Author) - Curtin University of Technology
D V Fursa (Author) - Curtin University of Technology
Publication details: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.41(8), 085205; 8
Publisher: Institute of Physics Publishing Ltd.
Date published: 2008
DOI: 10.1088/0953-4075/41/8/085205
ISSN: 0953-4075
Organisation Unit: Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland; Thompson Institute
Language: English
Record Identifier: 99449784202621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Optics; Physics, Atomic, Molecular & Chemical

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