First observation of low-lying excited states in the very neutron-richKr95
| Autor: | J. Jolie, Gary Simpson, I. Tsekhanovich, A. Scherillo, J. Genevey, N. Warr, R. Guglielmini, R. Orlandi, J. A. Pinston |
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| Rok vydání: | 2006 |
| Předmět: |
Physics
Mass number Nuclear and High Energy Physics Decay scheme 010308 nuclear & particles physics Fission Nuclear Theory 01 natural sciences Neutron temperature Nuclear physics Microsecond Excited state 0103 physical sciences Physics::Atomic and Molecular Clusters Neutron Atomic physics Nuclear Experiment 010306 general physics Radioactive decay |
| Zdroj: | Physical Review C. 73 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.73.037308 |
| Popis: | Microsecond isomers of neutron-rich nuclei in the mass $A=95$ chain were investigated at the ILL reactor in Grenoble. These nuclei were produced by thermal-neutron induced fission of $^{241}\mathrm{Pu}$. The detection is based on time correlation between fission fragments selected by the Lohengrin mass spectrometer and the \ensuremath{\gamma} rays from the isomers. In this article, the decay scheme of an isomer of half-life 1.4(2) $\ensuremath{\mu}$s in $^{95}\mathrm{Kr}$ is reported. It is the first time that excited states of this nucleus have been measured. These data show that this neutron-rich $N=59$ isotone is spherical at low excitation energy. |
| Databáze: | OpenAIRE |
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