| Zugriffsnummer | 30381 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Measurement of the autoionization lifetime of the energetically lowest doubly excited Q1 1 Σ+u state in H2 using electron ejection asymmetry |
| Autor(in); Institution |
Fischer, Andreas; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Sperl, Alexander; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Cörlin, Philipp; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Schönwald, Michael; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Meuren, Sebastian; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Ullrich, Joachim; Präsidium, P, PTB-Braunschweig
Pfeifer, Thomas; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Moshammer, Robert; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Senftleben, Arne; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
|
| Quelle/Jahr | Journal of Physics B: 47 (2014), 021001-1 - 021001-5 |
| ISSN | 0953-4075 |
| DOI | |
| Verlag | Bristol: IOP Publ. |
| Klassifikationscode | PACS: 33.80.Eh ; PACS: 33.70.Ca |
| Freie Schlagworte | doubly excited state ; asymmetry ; lifetime ; electron ejection asymmetry ; hydrogen molecule |
| Zusammenfassung | The autoionization lifetime of doubly excited H2 created by single photon absorption has been measured by means of a kinematically complete study. For dissociative ionization the experimentally observed asymmetry in the electron ejection direction with respect to the emitted proton is used to disentangle the two interfering pathways, direct ionization and autoionization. This allows us to determine the autoionization lifetime of the energetically lowest doubly excited Q1 1 Σ+u (1) state for a large range of internuclear distances, including the previously inaccessible small values. Excellent agreement with available ab initio calculations is obtained. |
Zitierung
Fischer, A., Sperl, A., Cörlin, P., Schönwald, M., Meuren, S., Ullrich, J., Pfeifer, T., Moshammer, R., & Senftleben, A. (2014). Measurement of the autoionization lifetime of the energetically lowest doubly excited Q₁ ¹ Σ⁺u state in H₂ using electron ejection asymmetry. Journal of Physics B, 47, 021001-1–021001-5. https://doi.org/10.1088/0953-4075/47/2/021001