High-spin structure of the $^{113-116}$Cd isotopes produced by heavy-ion induced fission reaction
N. Buforn
(1)
,
A. Astier
(1)
,
J. Meyer
(1)
,
M. Meyer
(1)
,
S. Perriès
(1)
,
N. Redon
(1)
,
M.G. Porquet
(2)
,
I. Deloncle
(2)
,
A. Bauchet
(2)
,
F. Azaiez
(3)
,
S. Bouneau
(3)
,
C. Bourgeois
(3)
,
J. Duprat
(3)
,
B.J.P. Gall
(4)
,
C. Gautherin
,
E. Gueorguieva
,
F. Hoellinger
(4)
,
T. Kutsarova
,
R. Lucas
,
A. Minkova
,
N. Schulz
(4)
,
H. Sergolle
(3)
,
T. Venkova
,
A.N. Wilson
A. Astier
- Fonction : Auteur
- PersonId : 739109
- IdHAL : alain-astier
I. Deloncle
- Fonction : Auteur
- PersonId : 742159
- IdHAL : isabelle-deloncle
- IdRef : 19712898X
J. Duprat
- Fonction : Auteur
- PersonId : 739924
- IdHAL : jean-duprat
- ORCID : 0000-0001-7408-3089
- IdRef : 116736127
B.J.P. Gall
- Fonction : Auteur
- PersonId : 753581
- IdHAL : gall-benoit-unistra
- ORCID : 0000-0002-9858-1397
C. Gautherin
- Fonction : Auteur
E. Gueorguieva
- Fonction : Auteur
T. Kutsarova
- Fonction : Auteur
R. Lucas
- Fonction : Auteur
A. Minkova
- Fonction : Auteur
T. Venkova
- Fonction : Auteur
A.N. Wilson
- Fonction : Auteur
Résumé
High-spin states in Cd113-116 have been investigated with the heavy-ion induced fission reaction Si-28 + Yb-176 at 165 MeV. The experiment was performed with the Eurogam II array. New rotational bands based on two quasi-particle states have been observed for even-even cadmium isotopes. A new level scheme based on the 11/2(-) isomeric state is proposed for Cd-115 and the one of (11)3Cd has been extended to spin (31/2(-)). Hartree-Fock calculations for even-even isotopes show a prolate deformation in this mass region. The decoupled bands identified in both odd nuclei are interpreted as being built upon a low-Omega(11/2) quasi-neutron configuration.