Reexamining Gamow-Teller decays near Ni78

M. F. Alshudifat et al.
Phys. Rev. C 93, 044325 – Published 22 April 2016

Abstract

Decays of neutron-rich nuclei Zn82,83 and Ga82,83 produced in proton-induced fission of U238 were studied at the Holifield Radioactive Ion Beam Facility using on-line mass separation and βγ spectroscopy techniques. New γ-ray transitions were identified and level schemes, which include states at high excitation energies in the range between 3–7 MeV were constructed. These high-energy levels were identified to be populated through allowed Gamow-Teller β transitions, and their structure was interpreted with new shell-model calculations. A β-delayed neutron branching ratio of 69±7% was deduced for Zn82 and revised β-decay half-life values of Zn82 [155(17)(20) ms] and Zn83 [122(28) ms] were determined.

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  • Received 27 June 2015
  • Revised 12 January 2016
  • Corrected 29 April 2016

DOI:https://doi.org/10.1103/PhysRevC.93.044325

©2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Corrections

29 April 2016

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Vol. 93, Iss. 4 — April 2016

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