Identification of levels in neutron-rich Ce-145 and Ce-147 nuclei - art. no. 067303

Authors
Sakhaee, M Zhu, SJ Hamilton, JH Ramayya, AV Hwang, JK Zhang, XQ Yang, LM Zhu, LY Gan, CY Jones, EF Gore, PM Ginter, TN Babu, BRS Ma, WC Konnicki, J Beyer, CJ Long, GL Deng, JK Li, K Cole, JD Aryaeinejad, R Drigert, MW Rasmussen, JO Asztalos, S Lee, IY Macchiavelli, AO Chu, SY Giegorich, KE Mohar, MF Stoyer, MA Lougheed, RW Lee, IY Moody, KJ Wild, JF Prussin, SG Ter-Akopian, GM Daniel, AV Oganessian, YT
Citation
M. Sakhaee et al., Identification of levels in neutron-rich Ce-145 and Ce-147 nuclei - art. no. 067303, PHYS REV C, 6006(6), 1999, pp. 7303
Citations number
20
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
6006
Issue
6
Year of publication
1999
Database
ISI
SICI code
0556-2813(199912)6006:6<7303:IOLINC>2.0.ZU;2-P
Abstract
High-spin structures in the neutron-rich nuclei Ce-145 and Ce-147 produced in the spontaneous fission of Cf-252 have been investigated by prompt gamma -ray spectroscopy. A collective band structure in Ce-145 is identified. Sev eral sidebands along with the new high-spin states in Ce-147 are also ident ified. Particle-plus-rotor model calculations indicate that the yrast bands in Ce-145 and Ce-147 most probably originate from coupling of the nu i(13/ 2) orbital to the ground states of Ce-144 and Ce-146. The ground state conf igurations of Ce-145,Ce-147 are (nu h(9/2) + nu f(7/2)) and nu h(9/2), resp ectively. [S0556-2813(99)05312-1].