Coulomb excitation of the N=50 nucleus Zn-80
Paper in proceeding, 2008
Neutron rich Zinc isotopes, including the N=50 nucleus Zn-80, 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 Zn-80 was observed and the 2(1)(+) state in Zn-78 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 Ni-78.
radioactive ion beams
isolde
isotopes
nuclear structure
beams
coulomb excitation
Author
J. V. 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. Gernhauser
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
Thomas Nilsson
Chalmers, Applied Physics, Subatomic Physics
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
Fredrik Wenander
B. H. Wolf
M. Zielinska
AIP Conference Proceedings
0094-243X (ISSN) 1551-7616 (eISSN)
Vol. 1012 291-295 453Subject Categories
Subatomic Physics