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  Signatures of projectile–nucleus scattering in three-dimensional (e, 2e) cross sections for argon

Ren, X. G., Senftleben, A., Pflüger, T., Dorn, A., Bartschat, K., & Ullrich, J. (2010). Signatures of projectile–nucleus scattering in three-dimensional (e, 2e) cross sections for argon. Journal of Physics B: Atomic, Molecular and Optical Physics, 43: 035202. doi:10.1088/0953-4075/43/3/035202.

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 Creators:
Ren, X. G.1, Author           
Senftleben, A.1, Author           
Pflüger, T.1, Author           
Dorn, A.1, Author           
Bartschat, K.2, Author
Ullrich, J.1, Author           
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              
2Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311, USA, ou_persistent22              

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 Abstract: Electron impact ionization (E0 = 195 eV) of the 3p-orbital in argon is investigated experimentally and theoretically. The triple-differential cross sections (TDCS) obtained using a multi-particle momentum spectrometer (reaction microscope) cover more than 80% of the full solid angle for the slow emitted electron up to an energy of 25 eV and a range of projectile scattering angles from −5◦ to −15◦. Inside the projectile scattering plane the TDCS shape is in rather good agreement with a hybrid distorted-wave plus R-matrix (DWBA-RM) calculation. Outside the scattering plane relatively strong electron emission is observed which is reproduced by theory in magnitude but not in shape. A systematic study of the TDCS behaviour and structure in this region indicates that its origin lies in high-order projectile−target interaction.

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Language(s): eng - English
 Dates: 2010-01-20
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 456809
DOI: 10.1088/0953-4075/43/3/035202
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Title: Journal of Physics B: Atomic, Molecular and Optical Physics
  Alternative Title : J. Phys. B
Source Genre: Journal
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Pages: - Volume / Issue: 43 Sequence Number: 035202 Start / End Page: - Identifier: -