Frequency and alignment classification of multiple band crossings

Journal Article · Mon Mar 03 04:00:00 EST 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.44.568· OSTI ID:5408895

Riedinger, L L; Andersen, O; Frauendorf, S; Garrett, J D; Gaardhoje, J J; Hagemann, G B; Herskind, B; Makovetzky, Y V; Waddington, J C; Guttormsen, M; Tjom, P O

Experiments on /sup 160/Yb indicate three negative-parity bands up to I > or = 21h. All three experience a band crossing around a frequency h..omega..=0.36 MeV, a value intermediate to those of the first and second yrast backbends. The i/sub 13/2/ band in /sup 161/Yb is observed up to /sup 49 +//sub 2/; it also has a strong upbend at this intermediate frequency. The fingerprint of a band crossing based upon the crossing frequency and gain in aligned angular momentum is demonstrated and the results compared to cranking-model calculations to suggest quasiparticle assignments for the bands.

• Research Organization: The Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
• OSTI ID: 5408895
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 44:9; 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
BACKBENDING
BARYONS
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CRANKING MODEL
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
GAMMA SPECTRA
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
NUCLEONS
OXYGEN 16 REACTIONS
QUASI PARTICLES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SAMARIUM 147 TARGET
SAMARIUM 148 TARGET
SPECTRA
TARGETS
YRAST STATES
YTTERBIUM 160
YTTERBIUM 161
YTTERBIUM ISOTOPES