Observation and analysis of rotation-particle multiplets in /sup 105/ /sup 107/Ag nuclei. [HI, and reactions at 45 to 60 MeV,. gamma. angular distributions and correlatons]

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1978

OSTI ID:5456817

Popli, R K

Excited states in /sup 105/ /sup 107/Ag were studied with the reactions /sup 96/Zr(/sup 14/N,3n)/sup 107/Ag at 49 MeV, /sup 94/Zr(/sup 16/O, p2n)/sup 107/Ag at 59 MeV, /sup 97/Mo(/sup 12/C, p2n)/sup 106/Ag at 45 MeV and /sup 92/Zr(/sup 16/O, p2n)/sup 105/Ag at 60 MeV. ..gamma..-ray angular distribution, ..gamma..-..gamma.. coincidence and ..gamma..-..gamma.. directional correlation measurements were performed and level schemes giving energies and spin-parities of levels were prepared. Most of these levels are reported for the first time. A ..delta..I = 1 level sequence is observed in the collective band built on the unique-parity g/sub 9/2/ orbital in both nuclei. The energy levels and the ..gamma..-ray branching ratios and mixing ratios in this band as well as in the negative-parity band built predominantly on the p/sub 1/2/ orbital are remarkably reproduced by the rotational model. It is found that Coriolis coupling and variable moment of inertia are very important for the success of the model. The same kind of calculation had reproduced the energy levels in odd A Pd and Cd nuclei, where most bands have a ..delta..I = 2 level sequence. It is suggested, in the light of this evidence, that the rotational model adequately describes most states populated by heavy-ion-induced reactions in these nuclei. Two more bands built on the 17/2 (2412.0 keV) and 21/2/sup +/ (3148.6 keV) states were observed in /sup 107/Ag, along with one band built on the 17/2 (2595.8 keV) state in /sup 105/Ag. These are thought to be three-quasiparticle bands.

• Research Organization: Purdue Univ., Lafayette, IN (USA)
• OSTI ID: 5456817
• Country of Publication: United States
• Language: English

Related Subjects

651723* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
651725 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BRANCHING RATIO
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COLLECTIVE MODEL
CORIOLIS FORCE
CORRELATIONS
DATA
DATA FORMS
DAYS LIVING RADIOISOTOPES
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
EXPERIMENTAL DATA
FERMIONS
FUSION REACTIONS
GRAPHS
HADRONS
HEAVY ION REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
MIXING RATIO
MOLYBDENUM 97 TARGET
NEUTRONS
NITROGEN 14 REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXYGEN 16 REACTIONS
PARITY
PARTICLE PROPERTIES
PROTONS
RADIOISOTOPES
ROTATIONAL STATES
SECONDS LIVING RADIOISOTOPES
SILVER 105
SILVER 106
SILVER 107
SILVER ISOTOPES
SPIN
STABLE ISOTOPES
TARGETS
VMI MODEL
ZIRCONIUM 92 TARGET
ZIRCONIUM 94 TARGET
ZIRCONIUM 96 TARGET