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Title: 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 ^{134}Ce and both exhibiting a neutron character.

Authors:
 [1];  [2];  [3];  [3];  [4]
  1. ORNL
  2. University of Kashmir, Srinagar, India
  3. Tata Institute of Fundamental Research, Mumbai, India
  4. Shanghai Jiao Tong University, Shanghai
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
979197
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Physics A; Journal Volume: 824; Journal Issue: 1-4
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CONFIGURATION; DEFORMATION; DEFORMED NUCLEI; GROUND STATES; NEUTRONS; OSCILLATIONS; triaxial deformation; gamma-vibration; two-quasiparticle states; triaxial projected shell model

Citation Formats

Sheikh, Javid, Bhat, G. H., Palit, R., Naik, Z., and Sun, Y. Multi-Quasiparticle Gamma-Band Structure in Neutron-Deficient Ce and Nd Isotopes. United States: N. p., 2009. Web. doi:10.1016/j.nuclphysa.2009.04.002.
Sheikh, Javid, Bhat, G. H., Palit, R., Naik, Z., & Sun, Y. Multi-Quasiparticle Gamma-Band Structure in Neutron-Deficient Ce and Nd Isotopes. United States. doi:10.1016/j.nuclphysa.2009.04.002.
Sheikh, Javid, Bhat, G. H., Palit, R., Naik, Z., and Sun, Y. Thu . "Multi-Quasiparticle Gamma-Band Structure in Neutron-Deficient Ce and Nd Isotopes". United States. doi:10.1016/j.nuclphysa.2009.04.002.
@article{osti_979197,
title = {Multi-Quasiparticle Gamma-Band Structure in Neutron-Deficient Ce and Nd Isotopes},
author = {Sheikh, Javid and Bhat, G. H. and Palit, R. and Naik, Z. and Sun, Y.},
abstractNote = {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 ^{134}Ce and both exhibiting a neutron character.},
doi = {10.1016/j.nuclphysa.2009.04.002},
journal = {Nuclear Physics A},
number = 1-4,
volume = 824,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}