Single-neutron orbits near Ni-78: Spectroscopy of the N=49 isotope Zn-79
Orlandi, R., Mücher, D., Raabe, R., Jungclaus, A., Pain, S.D., Bildstein, V., Chapman, R., Angelis, G. D., Johansen, J.G., Van Duppen, P., Andreyev, A.N., Bottoni, S., Cocolios, T.E., De Witte, H., Diriken, J., Elseviers, J., Flavigny, F., Gaffney, L.P., Gernhäuser, R., . . . Wimmer, K. (2015). Single-neutron orbits near Ni-78: Spectroscopy of the N=49 isotope Zn-79. Physics Letters B, 740, 298-302. https://doi.org/10.1016/j.physletb.2014.12.006
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Physics Letters BAuthors
Warr, N. |
Date
2015Copyright
© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/3.0/). Funded by SCOAP3
Single-neutron states in the Z = 30, N = 49 isotope 79Zn have been populated using the 78Zn(d, p)79Zn
transfer reaction at REX-ISOLDE, CERN. The experimental setup allowed the combined detection of
protons ejected in the reaction, and of γ rays emitted by 79Zn. The analysis reveals that the lowest
excited states populated in the reaction lie at approximately 1 MeV of excitation, and involve neutron
orbits above the N = 50 shell gap. From the analysis of γ -ray data and of proton angular distributions,
characteristic of the amount of angular momentum transferred, a 5/2+ configuration was assigned to a
state at 983 keV. Comparison with large-scale-shell-model calculations supports a robust neutron N = 50
shell-closure for 78Ni. These data constitute an important step towards the understanding of the magicity
of 78Ni and of the structure of nuclei in the region.
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Except where otherwise noted, this item's license is described as © 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/3.0/). Funded by SCOAP3
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