Nuclear moments of inertia at high spin

Conference · Fri Oct 01 04:00:00 EDT 1982

OSTI ID:6593868

Deleplanque, M A

The competition between collective motion and alignment at high spin can be evaluated by measuring two complementary dynamic moments of inertia. The first, I band, measured in ..gamma..-..gamma.. correlation experiments, relates to the collective properties of the nucleus. A new moment of inertia I/sub eff/ is defined here, which contains both collective and alignment effects. Both of these can be measured in continuum ..gamma..-ray spectra of rotational nuclei up to high frequencies. The evolution of ..gamma..-ray spectra for Er nuclei from mass 160 to 154 shows that shell effects can directly be observed in the spectra of the lighter nuclei.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6593868
• Report Number(s): LBL-15162; CONF-821143-2; ON: DE83003591
• Country of Publication: United States
• Language: English

Related Subjects

651813* -- Nuclear Properties & Reactions
A=150-189
Theoretical-- Energy Levels & Transitions-- (-1987)
651823 -- Nuclear Properties & Reactions
A=150-189
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
COLLECTIVE EXCITATIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ERBIUM ISOTOPES
EXCITATION
EXCITED STATES
GAMMA SPECTRA
HIGH SPIN STATES
ISOTOPES
MOMENT OF INERTIA
NUCLEAR ALIGNMENT
NUCLEAR STRUCTURE
RARE EARTH ISOTOPES
ROTATIONAL STATES
SPECTRA
YRAST STATES