Evidence for deformation in Cd113-116 isotopes

Authors
Buforn, N Astier, A Meyer, J Meyer, M Perries, S Redon, N Stezowski, O Porquet, MG Deloncle, I Bauchet, A Duprat, J Gall, BJP Gautherin, C Gueorguieva, E Hoellinger, F Kutsarova, T Lucas, R Minkova, A Schulz, N Sergolle, H Venkova, T Wilson, AN
Citation
N. Buforn et al., Evidence for deformation in Cd113-116 isotopes, EUR PHY J A, 7(3), 2000, pp. 347-353
Citations number
38
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
7
Issue
3
Year of publication
2000
Pages
347 - 353
Database
ISI
SICI code
1434-6001(200003)7:3<347:EFDICI>2.0.ZU;2-R
Abstract
High-spin states in Cd113-116 have been investigated with the fusion-fissio n reaction Si-28 + Yb-176 at 145 MeV. The experiment has been performed wit h the Eurogam2 array. New rotational bands based on two quasi-particle stat es have been observed for even-even cadmium isotopes. A new level scheme ba sed on the 11/2(-) isomeric state is proposed for Cd-115 and the one of Cd- 113 has been extended to spin (31/2(-)). The decoupled bands identified in both odd-A nuclei are interpreted as being built upon a low-Omega h(11/2) q uasi-neutron configuration. Microscopic Hartree-Fock + BCS calculations con firm the prolate deformation in this mass region especially for the odd cad mium isotopes.