1. Institut für Physik, Johannes Gutenberg Universität-Mainz, 55128 Mainz, Germany
2. GSI Helmholtzzentrum für Schwerionenforschung, Helmholtz-Institut Mainz, 55128 Mainz, Germany
3. Faculté des Sciences Mirande, Université de Bourgogne, Dijon 21078, France
4. International Tomography Center SB RAS, Novosibirsk 630090, Russia
5. Novosibirsk State University, Novosibirsk 630090, Russia
6. State Scientific Research Institute of Chemistry and Technology of Organoelement Compounds, Moscow 105118, Russia
7. University of California, Berkeley, California 94720-7300, United States