Multi-quasiparticle gamma-band structure in neutron-deficient Ce and Nd isotopes
Abstract
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 134Ce and both exhibiting a neutron character.
Cite
@article{arxiv.0904.2049,
title = {Multi-quasiparticle gamma-band structure in neutron-deficient Ce and Nd isotopes},
author = {J. A. Sheikh and G. H. Bhat and R. Palit and Z. Naik and Y. Sun},
journal= {arXiv preprint arXiv:0904.2049},
year = {2015}
}
Comments
15 pages, 9 figures, accepted by Nucl. Phys. A