High-spin levels in /sup 191/Pt and /sup 193/Pt and the triaxial rotor model

Journal Article · Sat Jan 01 00:00:00 EST 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.94· OSTI ID:7320857

Saha, S K; Piiparinen, M; Cunnane, J C; Daly, P J; Dors, C L; Khoo, T L; Bernthal, F M

The high-spin level structures of the transitional nuclei /sup 191/Pt and /sup 193/Pt have been studied by (..cap alpha..,3n..gamma..) reactions on enriched Os targets. The measurements included ..gamma..-ray singles, comprehensive ..gamma..-..gamma.. coincidences, half-life determinations, and ..gamma..-ray angular distributions. The extensive /sup 191/Pt and /sup 193/Pt level schemes established are reported here. In both nuclei, decoupled ..nu..i/sub 13///sub 2/ /sup -1/ bands, strongly resembling the ground bands of the adjacent core nuclei, and many other high-spin positive parity states have been located. Low-lying 21/2/sup -/ bands have also been observed in both nuclei and they are described as semidecoupled bands with microscopic structures dominated by three-quasiparticle components of the type (..nu..i/sub 13///sub 2/ /sup -2/,..nu..j/sup -1/). The abundant information about ..nu..i/sub 13///sub 2/ level families obtained in these experiments and in a complementary /sup 191/Au decay study is discussed, and it is shown that these complex level spectra can be accounted for rather well in terms of the coupling of an i/sub 13///sub 2/ neutron hole to a triaxially deformed core. (AIP)

• Research Organization: Chemistry Department, Purdue University, West Lafayette, Indiana 47907
• OSTI ID: 7320857
• Journal Information: Phys. Rev., C; (United States), Vol. 15:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
PLATINUM 191
PLATINUM 193
ALPHA REACTIONS
COMPOUND-NUCLEUS REACTIONS
OSMIUM 190
OSMIUM 192
ANGULAR DISTRIBUTION
ENERGY-LEVEL TRANSITIONS
HALF-LIFE
NUCLEAR STRUCTURE
MEV RANGE 10-100
NEUTRONS
BARYONS
BETA DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DAYS LIVING RADIOISOTOPES
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HEAVY NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEV RANGE
MINUTES LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
OSMIUM ISOTOPES
PLATINUM ISOTOPES
RADIOISOTOPES
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES
651923* - Nuclear Properties & Reactions
A=190-219
Experimental- Energy Levels & Transitions- (-1987)
651925 - Nuclear Properties & Reactions
A=190-219
Experimental- Nuclear Reactions & Scattering- (-1987)