Coulomb Excitation of the N = 50 nucleus 80Zn

Neutron rich Zinc isotopes, including the
N
= 50
nucleus
80
Zn
,
were produced and post‐accelerated at the Radioactive Ion Beam (RIB) facility REX‐ISOLDE (CERN). Low‐energy Coulomb excitation was induced on these isotopes after post‐acceleration, yielding B(E2) strengths to the first excited
2
+
states. For the first time, an excited state in
80
Zn
was observed and the
2
1
+
state in
78
Zn
was established. The measured
B(E2,2
1
+
→0
1
+
)
values are compared to two sets of large scale shell model calculations. Both calculations reproduce the observed
B(E2)
systematics for the full Zinc isotopic chain. The results for
N = 50
isotones indicate a good
N = 50
shell closure and a strong
Z
= 28
proton core polarization. The new results serve as benchmarks to establish theoretical models, predicting the nuclear properties of the doubly magic nucleus 78Ni

Authors: J. Van de Walle, F. Aksouh, F. Ames, T. Behrens, V. Bildstein, A. Blazhev, J. Cederkall, E. Clement, T.E. Cocolios, T. Davinson, P. Delahaye, J. Eberth, A. Ekstrom, D.V. Fedorov, V.N. Fedosseev, L.M. Fraile, S. Franchoo, R. Gernhäuser, G. Georgiev, D. Habs, K. Heyde, G. Huber, M. Huyse, F. Ibrahim, O. Ivanov, J. Iwanicki, J. Jolie, O. Kester, U. Koster, T. Kroll, R. Krucken, M. Lauer, A.F. Lisetskiy, R. Lutter, B.A. Marsh, P. Mayet, O. Niedermaier, T. Nilsson, M. Pantea, O. Perru, R. Raabe, P. Reiter, M. Sawicka, H. Scheit, G. Schrieder, D. Schwalm, M.D. Seliverstov, T. Sieber, G. Sletten, N. Smirnova, M. Stanoiu, I. Stefanescu, J.-C. Thomas, J.J. Valiente-Dobon, P. Van Duppen, D. Verney, D. Voulot, N. Warr, D. Weisshaar, F. Wenander, B.H. Wolf, M. Zielińska

Doi: 10.1063/1.2939313

Issue number:

Journal: AIP Conf. Proc.

Page number: 291

Published on: 2008-05-12

Year: