Volume 62, Number 4, May 2003
|Page(s)||477 - 483|
|Section||Atomic and molecular physics|
|Published online||01 May 2003|
Revealing the non-s2 contributions in the momentum wave function of ground-state
Institut für Kernphysik, Universität
Frankfurt August-Euler-Str. 6, 60486 Frankfurt, Germany
2 Department of Physics, Kansas State University - Manhattan, KA 66506, USA
3 Institut für Theoretische Physik, Universität Frankfurt Robert-Mayer-Str. 6, 60487 Frankfurt, Germany
4 RSPhysSE, Australian National University - Canberra 0200, Australia
5 Max-Planck Institut für Mikrostruktur Physik - Weinberg 2, 06120 Halle, Germany
6 Department of Physics, Stockholm University - S-10405 Stockholm, Sweden
Corresponding author: firstname.lastname@example.org
Accepted: 20 March 2003
The correlated Tunneling Transfer Ionization (TuTI) channel in fast 4-body processes is utilized to probe the highly correlated asymptotic parts of the ground-state momentum space wave function. In this reaction, predominantly at large nuclear impact parameters, one electron in the ground state is captured by the proton by tunneling through the two-center barrier when electron and proton velocity vectors resonantly match. The measured 3-particle final-state momentum distributions show characteristic features that we trace back to the highly correlated non-s2 components of the ground-state momentum wave function. This conclusion is supported by a simple heuristic model.
PACS: 34.70.+e – Charge transfer / 34.50.Fa – Electronic excitation and ionization of atoms (including beam-foil excitation and ionization) / 39.90.+d – Other instrumentation and techniques for atomic and molecular physics
© EDP Sciences, 2003
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