Octupole shapes and shape changes at high spins in theZ≊58,N≊88 nuclei
- 1 May 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 45 (5) , 2226-2237
- https://doi.org/10.1103/physrevc.45.2226
Abstract
The shapes of rotating Xe, Ba, Ce, Nd, and Sm nuclei (84≤N≤94) are calculated using the cranking model with the Woods-Saxon average potential and pairing. The lightest isotopes of Xe and Ba have nearly spherical ground states, but develop octupole and quadrupole deformations under rotation which remain up to very high spins. The ground states of the heavier isotopes have octupole and quadrupole deformations which persist up to medium spins (I≊12ħ). At higher spins, a shape transition is predicted to reflection-symmetric aligned many-quasiparticle configurations.Keywords
This publication has 42 references indexed in Scilit:
- A self-consistent approach to the ground state and lowest-lying negative-parity state in the barium isotopesNuclear Physics A, 1990
- Study of the potential energy of “octupole”-deformed nuclei in a multidimensional deformation spaceNuclear Physics A, 1988
- Octupole vibrations in nucleiReports on Progress in Physics, 1988
- Octupole instability induced by rotation in the nuclei 146,148NdPhysics Letters B, 1988
- A new region of intrinsic reflection asymmetry in nuclei around 145Ba?Physics Letters B, 1985
- Analysis of octupole instability in medium-mass and heavy nucleiNuclear Physics A, 1984
- The breaking of intrinsic reflection symmetry in nuclear ground statesNuclear Physics A, 1982
- Nuclear mass formula with a Yukawa-plus-exponential macroscopic model and a folded-Yukawa single-particle potentialNuclear Physics A, 1981
- Negative parity yrast states in deformed nucleiPhysics Letters B, 1976
- Low-lying octupole states of the doubly even deformed nuclei with 152 ≦ A ≦ 190Nuclear Physics A, 1970