Isomeric decay spectroscopy of the 217Bi isotope

A. Gottardo, J.J. Valiente-Dobon, G. Benzoni, S. Lunardi, A. Gadea, A. Algora, N. Al-Dahan, Alison Bruce, M. Bunce, Ana M. Denis Bacelar

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The structure of the neutron-rich bismuth isotope 217Bi has been studied for the first time. The fragmentation of a primary 238U2 beam at the FRS-RISING setup at GSI was exploited to perform γ -decay spectroscopy, since μs isomeric states were expected in this nucleus. Gamma rays following the decay of a t1/2=3 μs isomer were observed, allowing one to establish the low-lying structure of 217Bi . The level energies and the reduced electric quadrupole transition probability B(E2) from the isomeric state are compared to large-scale shell-model calculations.
Original languageEnglish
JournalPhysical Review C
Publication statusPublished - 23 Sep 2014

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    Gottardo, A., Valiente-Dobon, J. J., Benzoni, G., Lunardi, S., Gadea, A., Algora, A., Al-Dahan, N., Bruce, A., Bunce, M., & Denis Bacelar, A. M. (2014). Isomeric decay spectroscopy of the 217Bi isotope. Physical Review C, 90.