High-spin states in /sup 183/Ir and /sup 185/Ir nuclei: Is the breaking of a few pairs of nucleons responsible for the backbending effect in the osmium region

Journal Article · Mon Feb 14 04:00:00 EST 1977 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.38.327· OSTI ID:7124102

Andre, S; Genevey-Rivier, J; Treherne, J; Jastrzebski, J; Kaczarowski, R; Lukasiak, J

High-spin levels of the rotation-aligned bands built on the h/sub 9///sub 2/ subshell in /sup 183/Ir and /sup 185/Ir have been populated by (..cap alpha.., 6n..gamma..) and (..cap alpha.., 4n..gamma..) reactions. In /sup 183/Ir a rapid increase in the apparent moment of inertia has been observed at high spins. The implication of this result for the interpretation of backbending phenomena in even nuclei in this mass region is discussed.

• Research Organization: Institut des Sciences Nucleaires, 38044 Grenoble, France
• OSTI ID: 7124102
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 38:7; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
FERMIONS
GAMMA RADIATION
HADRONS
HEAVY NUCLEI
HIGH SPIN STATES
HOURS LIVING RADIOISOTOPES
IONIZING RADIATIONS
IRIDIUM 183
IRIDIUM 185
IRIDIUM ISOTOPES
ISOTOPES
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
MOMENT OF INERTIA
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
RADIATIONS
RADIOISOTOPES
RHENIUM 185 TARGET
RHENIUM 187 TARGET
ROTATIONAL STATES
TARGETS