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Dorn A, Kheifets A, Schröter CD, et al. Double ionization of helium by electron-impact: complete pictures of the four-body breakup dynamics. Phys Rev Lett. 2001;86(17):3755-8doi: 10.1103/PhysRevLett.86.3755.
Dorn, A., Kheifets, A., Schröter, C. D., Najjari, B., Höhr, C., Moshammer, R., & Ullrich, J. (2001). Double ionization of helium by electron-impact: complete pictures of the four-body breakup dynamics. Physical review letters, 86(17), 3755-8. https://doi.org/10.1103/PhysRevLett.86.3755
Dorn, A, et al. "Double ionization of helium by electron-impact: complete pictures of the four-body breakup dynamics." Physical review letters vol. 86,17 (2001): 3755-8. doi: https://doi.org/10.1103/PhysRevLett.86.3755
Dorn A, Kheifets A, Schröter CD, Najjari B, Höhr C, Moshammer R, Ullrich J. Double ionization of helium by electron-impact: complete pictures of the four-body breakup dynamics. Phys Rev Lett. 2001 Apr 23;86(17):3755-8. doi: 10.1103/PhysRevLett.86.3755. PMID: 11329316.
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Phys Rev Lett. 2001 Apr 23;86(17):3755-8. doi: 10.1103/PhysRevLett.86.3755.

Double ionization of helium by electron-impact: complete pictures of the four-body breakup dynamics.

Physical review letters

A Dorn, A Kheifets, C D Schröter, B Najjari, C Höhr, R Moshammer, J Ullrich

Affiliations

  1. Universität Freiburg, Hermann-Herder-Strasse 3, 79104 Freiburg, Germany.

PMID: 11329316 DOI: 10.1103/PhysRevLett.86.3755

Abstract

The dynamics of He double ionization by 2 keV electron impact is studied experimentally for a momentum transfer of 0.6 a.u. at excess energies of 10 and 40 eV. Complete sets of fivefold differential cross sections are presented for all electron emission angles in coplanar geometry. Contributions beyond the first Born approximation are identified comparing experimental data with first order convergent close-coupling calculations which are in considerably better agreement with the present experiment than with the earlier measurement of Kheifets et al. [J. Phys. B 32, 5047 (1999)].

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