Shapes and shape fluctuations in hot rotating /sup 158/Yb nuclei

Journal Article · Mon May 01 00:00:00 EDT 1989 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.39.2008· OSTI ID:6065880

Goodman, A L

The finite-temperature Hartree-Fock-Bogoliubov cranking equation is solved for the transitional nucleus /sup 158/Yb. The deformation and pair gaps are calculated as functions of temperature and angular momentum. There is a transition from prolate collective rotation to oblate noncollective rotation for spins above 39(h/2..pi..) or temperatures above a spin-dependent critical temperature. When statis- tical shape fluctuations are included for spins above 39(h/2..pi..), collective structures are populated at moderate temperatures. Although the yrast line is noncollective for I>39(h/2..pi..), the shape fluctuations produce a collective B(E2) value at moderate temperatures.

• Research Organization: Physics Department, Tulane University, New Orleans, Louisiana 70118
• OSTI ID: 6065880
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 39:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
COLLECTIVE MODEL
CRANKING MODEL
CRITICAL TEMPERATURE
DEFORMATION
E2-TRANSITIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITED STATES
HAMILTONIANS
HARTREE-FOCK-BOGOLYUBOV THEORY
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MEAN-FIELD THEORY
MULTIPOLE TRANSITIONS
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEI
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PROBABILITY
QUANTUM OPERATORS
QUASI PARTICLES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
ROTATIONAL STATES
SPIN
STATISTICAL MODELS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
YTTERBIUM 158
YTTERBIUM ISOTOPES