High-spin multiquasiparticle yrast traps in /sup 176/Hf

Journal Article · Mon Sep 27 04:00:00 EDT 1976 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.37.823· OSTI ID:7336875

Khoo, T L; Bernthal, F M; Robertson, R G.H.; Warner, R A

We have identified several high-K four- and six-quasiparticle states between 2.5 and 5 MeV excitation in /sup 176/Hf, which are well described by the collective model with axial symmetry. Isomers with K/sup pi/=14/sup -/, 19/sup +/, and 22/sup -/ form traps at or near the yrast line. The yrast structure changes from the ground band to a K/sup pi/=16/sup +/ band at I=16 and again to a K/sup pi/=22/sup -/ state at I=22, providing the first demonstration that intrinsic excitations of a heavy deformed nucleus can become yrast. (AIP)

• Research Organization: Cyclotron Laboratory and Departments of Physics and Chemistry, Michigan State University, East Lansing, Michigan 48824
• OSTI ID: 7336875
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 37:13; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651823* -- Nuclear Properties & Reactions
A=150-189
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLECTIVE MODEL
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HAFNIUM 176
HAFNIUM ISOTOPES
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEI
STABLE ISOTOPES
YRAST STATES