Coulomb Excitation of Neutron-Rich Zn Isotopes: First Observation of the 2+_1 State in 80Zn
J. van de Walle
,
F. Aksouh
(1)
,
F. Ames
,
T. Behrens
,
V. Bildstein
,
A. Blazhev
,
J. Cederkäll
,
E. Clément
(1)
,
T. E. Cocolios
,
T. Davinson
,
P. Delahaye
(2)
,
J. Eberth
,
A. Ekström
,
D. V. Fedorov
,
V. N. Fedosseev
,
L. M. Fraile
,
S. Franchoo
(2)
,
R. Gernhauser
,
G. Georgiev
(3)
,
D. Habs
,
K. Heyde
,
G. Huber
,
M. Huyse
,
F. Ibrahim
(4)
,
O. Ivanov
,
J. Iwanicki
,
J. Jolie
,
O. Kester
,
U. Köster
(5)
,
T. Kröll
,
R. Krücken
,
M. Lauer
,
A. F. Lisetskiy
,
R. Lutter
,
B. A. Marsh
,
P. Mayet
,
O. Niedermaier
,
T. Nilsson
,
M. Pantea
,
O. Perru
(4)
,
R. Raabe
,
P. Reiter
,
M. Sawicka
,
H. Scheit
,
G. Schrieder
,
D. Schwalm
,
M. D. Seliverstov
,
T. Sieber
,
G. Sletten
,
N. Smirnova
(6)
,
M. Stanoiu
(7)
,
I. Stefanescu
,
J.C. Thomas
(8)
,
J.J. Valiente-Dobón
,
P. van Duppen
,
D. Verney
(4)
,
D. Voulot
,
N. Warr
,
D. Weisshaar
,
F. Wenander
,
B. H. Wolf
,
M. Zielinska
(1)
1
DPHN -
Département de Physique Nucléaire (ex SPhN)
2 CERN - European Organization for Nuclear Research
3 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
4 IPNO - Institut de Physique Nucléaire d'Orsay
5 ILL - Institut Laue-Langevin
6 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
7 GSI - Helmholtz zentrum für Schwerionenforschung GmbH
8 GANIL - Grand Accélérateur National d'Ions Lourds
2 CERN - European Organization for Nuclear Research
3 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
4 IPNO - Institut de Physique Nucléaire d'Orsay
5 ILL - Institut Laue-Langevin
6 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
7 GSI - Helmholtz zentrum für Schwerionenforschung GmbH
8 GANIL - Grand Accélérateur National d'Ions Lourds
J. van de Walle
- Function : Author
F. Ames
- Function : Author
T. Behrens
- Function : Author
V. Bildstein
- Function : Author
A. Blazhev
- Function : Author
J. Cederkäll
- Function : Author
T. E. Cocolios
- Function : Author
T. Davinson
- Function : Author
J. Eberth
- Function : Author
A. Ekström
- Function : Author
D. V. Fedorov
- Function : Author
V. N. Fedosseev
- Function : Author
L. M. Fraile
- Function : Author
R. Gernhauser
- Function : Author
G. Georgiev
- Function : Author
- PersonId : 739360
- IdHAL : georgi-georgiev
- ORCID : 0000-0003-1467-1764
- IdRef : 16859188X
D. Habs
- Function : Author
K. Heyde
- Function : Author
G. Huber
- Function : Author
M. Huyse
- Function : Author
O. Ivanov
- Function : Author
J. Iwanicki
- Function : Author
J. Jolie
- Function : Author
O. Kester
- Function : Author
T. Kröll
- Function : Author
R. Krücken
- Function : Author
- PersonId : 755533
- ORCID : 0000-0002-2755-8042
M. Lauer
- Function : Author
A. F. Lisetskiy
- Function : Author
R. Lutter
- Function : Author
B. A. Marsh
- Function : Author
P. Mayet
- Function : Author
O. Niedermaier
- Function : Author
T. Nilsson
- Function : Author
- PersonId : 755193
- ORCID : 0000-0001-9604-6377
M. Pantea
- Function : Author
R. Raabe
- Function : Author
P. Reiter
- Function : Author
M. Sawicka
- Function : Author
H. Scheit
- Function : Author
G. Schrieder
- Function : Author
D. Schwalm
- Function : Author
M. D. Seliverstov
- Function : Author
T. Sieber
- Function : Author
G. Sletten
- Function : Author
I. Stefanescu
- Function : Author
J.C. Thomas
- Function : Author
- PersonId : 738662
- IdHAL : jean-charles-thomas
- ORCID : 0000-0001-6618-9772
J.J. Valiente-Dobón
- Function : Author
P. van Duppen
- Function : Author
D. Voulot
- Function : Author
N. Warr
- Function : Author
D. Weisshaar
- Function : Author
- PersonId : 755342
- ORCID : 0000-0002-9190-3971
F. Wenander
- Function : Author
B. H. Wolf
- Function : Author
Abstract
Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of the 2 state in 78Zn could be firmly established and for the first time the 2+0 transition in 80Zn was observed at 1492(1) keV. B(E2,20) values were extracted for 74,76,78,80Zn and compared to large scale shell model calculations. With only two protons outside the Z=28 proton core, 80Zn is the lightest N=50 isotone for which spectroscopic information has been obtained to date. Two sets of advanced shell model calculations reproduce the observed B(E2) systematics. 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.