| Issue |
EPJ Web of Conferences
Volume 35, 2012
Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2012
|
|
|---|---|---|
| Article Number | 06003 | |
| Number of page(s) | 4 | |
| Section | Nuclear Structure | |
| DOI | https://doi.org/10.1051/epjconf/20123506003 | |
| Published online | 30 October 2012 | |
https://doi.org/10.1051/epjconf/20123506003
Levels in 210Fr and the decay of a high-spin, multi-particle isomer
Department of Nuclear Physics, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia
a e-mail: vincent.margerin@anu.edu.au
The structure of 210Fr has been studied through the 197Au(18O, 5n)210Fr reaction. A high-spin isomeric state has been identified at ~4.4 MeV. It has a lifetime of 686(17) ns and decays by two γ-rays that are very likely to be either M2 or E3 multipolarity. The measured strengths in the case of E3 assignments are approximatively 8 and 21 W.u., respectively. These would be less enhanced than is observed in the decay from the high spin isomers in 209Fr and 211Fr that are believed to be from a related configuration. Possible configuration assignments are discussed.
© Owned by the authors, published by EDP Sciences, 2012
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