TY - JOUR
T1 - An interacting boson model description of octupole states in nucleic
AU - Barfield, A. F.
AU - Barrett, B. R.
AU - Wood, J. L.
AU - Scholten, O.
N1 - Funding Information:
The authors are indebted to G. Leander and F. Iachello for many helpful discussions. On of us (A.F.B.) would like to thank UNISOR and the National Superconducting Cyclotron Laboratory for their hospitality at Oak Ridge National Laboratory and Michigan State University, respectively, where many of the calculations were done. This work was supported in part by the National Science Foundation under Grants PHY-84-05172 and PHY-8407858, and by the Department of Energy under Contracts DE-AS05-80ER10599 and DE-AC05-760ROOO33.
PY - 1988/3
Y1 - 1988/3
N2 - The IBM-1 + f-boson model is described and systematically applied to the nuclei 154Sm, 156Gd, 158Gd, 158Dy, 162Dy, 168Er, 172Yb, 178Hf, and 182W. Reasonable agreement with available energies and B(E3) transition rates is obtained in all cases except 162Dy, which has the anomalous octupole band order Kπ = 2-, 0-, 1-. This energy ordering of K- bands cannot be obtained within the present model. The parameter trends show considerable variation, indicating that the underlying fermionic subshell structure is very important in octupole states.
AB - The IBM-1 + f-boson model is described and systematically applied to the nuclei 154Sm, 156Gd, 158Gd, 158Dy, 162Dy, 168Er, 172Yb, 178Hf, and 182W. Reasonable agreement with available energies and B(E3) transition rates is obtained in all cases except 162Dy, which has the anomalous octupole band order Kπ = 2-, 0-, 1-. This energy ordering of K- bands cannot be obtained within the present model. The parameter trends show considerable variation, indicating that the underlying fermionic subshell structure is very important in octupole states.
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U2 - 10.1016/0003-4916(88)90016-4
DO - 10.1016/0003-4916(88)90016-4
M3 - Article
AN - SCOPUS:0040558830
SN - 0003-4916
VL - 182
SP - 344
EP - 374
JO - Annals of Physics
JF - Annals of Physics
IS - 2
ER -