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Tuning the internuclear distance in ionization of H2

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons31033

Senftleben,  A.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30893

Pflüger,  T.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30934

Ren,  X.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30836

Najjari,  B.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30419

Dorn,  A.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31125

Ullrich,  J.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Citation

Senftleben, A., Pflüger, T., Ren, X., Najjari, B., Dorn, A., & Ullrich, J. (2011). Tuning the internuclear distance in ionization of H2. Journal of Physics B: Atomic, Molecular and Optical Physics, 45(2): 021001, pp. 1-5. doi:doi:10.1088/0953-4075/45/2/021001.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-433A-A
Abstract
The dependence of triply differential cross sections on the internuclear distance R is explored for ionization of molecular hydrogen by 200 eV electrons for two distinct values R = 1.1 and 1.4 au in comparison with helium as an isoelectronic system with a single nucleus (R = 0). A clear and systematic trend is observed with an increasing recoil-peak contribution with decreasing R. BBK-type model calculations indicate that the inclusion of the passive electron in the target wavefunction is the key ingredient for explaining the data rather than the two-centre character of the system.