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  Fragmentation of helium in collisions with slow electrons: three- and four-body dynamics

Dürr, M., Najjari, B., Dimopoulou, C., Dorn, A., & Ullrich, J. (2006). Fragmentation of helium in collisions with slow electrons: three- and four-body dynamics. In A. Lahmam-Bennani, & B. Lohmann (Eds.), IONIZATION, CORRELATION, AND POLARIZATION IN ATOMIC COLLISIONS: Proceedings of the Int. Symp. on (e,2e) Double Photoionization, and Related Topics and the Thirteenth Int. Symp. on Polarization and Correlation in Electronic and Atomic Collisions (pp. 12-17). Melville: American Institute of Physics.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-86B1-F Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-86B2-D
Genre: Konferenzbeitrag

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 Urheber:
Dürr, M.1, Autor           
Najjari, B.1, Autor           
Dimopoulou, C.1, Autor           
Dorn, A.1, Autor           
Ullrich, J.1, Autor           
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              

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Schlagwörter: 34.80.Dp, 34.80.Pa
 Zusammenfassung: With a multi-coincidence imaging technique (reaction microscope) the fragmentation of helium atoms by electron impact was explored at 106 eV incident energy. Kinematically complete information for both single- and double-ionization is obtained. The large acceptance achieved for low-energy electrons (E < 15 eV) covering almost the entire solid-angle allows to gain three-dimensional images of the electron emission for single-ionization with asymmetric kinematics. Strong deviations in the fully differential cross section between experimental data and a 3C-calculation appear in the non-coplanar geometry. Furthermore, for the first time differential experimental data on double-ionization of helium at the same impact energy (27 eV above the threshold) are presented. Preferred configurations of electron emission after the collision can be identified. The angular correlation reveals, that the dynamics is dominated by the mutual repulsion of the electrons.

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Sprache(n): eng - English
 Datum: 2006-01-09
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 277812
DOI: 10.1063/1.2165613
 Art des Abschluß: -

Veranstaltung

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Titel: The Thirteenth International Symposium on Polarization and Correlation in Electronic and Atomic Collisions and the International Symposium on (e,2e), Double Photoionization and Related Topics
Veranstaltungsort: Buenos Aires, Argentina
Start-/Enddatum: 2005-07-28 - 2005-07-30

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Projektinformation

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Quelle 1

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Titel: IONIZATION, CORRELATION, AND POLARIZATION IN ATOMIC COLLISIONS: Proceedings of the Int. Symp. on (e,2e) Double Photoionization, and Related Topics and the Thirteenth Int. Symp. on Polarization and Correlation in Electronic and Atomic Collisions
Genre der Quelle: Konferenzband
 Urheber:
Lahmam-Bennani, Azzedine, Herausgeber
Lohmann, Birgit, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Melville : American Institute of Physics
Seiten: XIII, 227 S. : graph. Darst. Band / Heft: - Artikelnummer: - Start- / Endseite: 12 - 17 Identifikator: ISBN: 0-7354-0303-1

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Titel: AIP Conference Proceedings
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 811 Artikelnummer: - Start- / Endseite: - Identifikator: -