Multi-quasiparticle gamma-band structure in neutron-deficient Ce and Nd isotopes
| Data(s) |
2009
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| Resumo |
The newly developed multi-quasiparticle triaxial projected shell model approach is employed to study the high-spin band structures in neutron-deficient even-even Ce- and Nd-isotopes. It is observed that gamma-bands are built on each intrinsic configuration of the triaxial mean-field deformation. Due to the fact that a triaxial configuration is a superposition of several K-states, the projection from these states results in several low-lying bands originating from the same intrinsic configuration. This generalizes the well-known concept of the surface gamma-oscillation in deformed nuclei based on the ground-state to gamma-bands built on multi-quasiparticle configurations. This new feature provides an alternative explanation on the observation of two I = 10 aligning states in Ce-134 and both exhibiting a neutron character. (C) 2009 Elsevier B.V. All rights reserved. Division of Nuclear Physics, US Department of Energy DE-AC05-00OR22725 National Natural Science Foundation of China 10875077 Chinese Major State Basic Research Development Program 2007CB815005 |
| Identificador | |
| Idioma(s) |
英语 |
| Fonte |
Sheikh, JA (Sheikh, J. A.); Bhat, GH (Bhat, G. H.); Palit, R (Palit, R.); Naik, Z (Naik, Z.); Sun, Y (Sun, Y.).Multi-quasiparticle gamma-band structure in neutron-deficient Ce and Nd isotopes, NUCLEAR PHYSICS A,2009,824(1-4):58-69 |
| Palavras-Chave | #Triaxial deformation #gamma-vibration #Two-quasiparticle states #Triaxial projected shell model |
| Tipo |
期刊论文 |
