Isomeric decay spectroscopy of the Bi217 isotope

A. Gottardo et al.
Phys. Rev. C 90, 034317 – Published 23 September 2014

Abstract

The structure of the neutron-rich bismuth isotope Bi217 has been studied for the first time. The fragmentation of a primary U238 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 Bi217. The level energies and the reduced electric quadrupole transition probability B(E2) from the isomeric state are compared to large-scale shell-model calculations.

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  • Received 5 June 2014
  • Revised 14 August 2014

DOI:https://doi.org/10.1103/PhysRevC.90.034317

©2014 American Physical Society

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Vol. 90, Iss. 3 — September 2014

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