Nuclear properties of /sup 45/V

Thesis/Dissertation · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5229013

Gronemeyer, S A

Comparison of nuclear properties of /sup 45/Ti = 1/2 mirror pairs in the f7/2 shell has been continued by studying /sup 45/V, mirror nucleus of well-known /sup 45/Ti. Prompt and delayed gamma-gamma and neutron-gamma coincidence studies were made of states in /sup 45/V populated in the /sup 40/Ca(/sup 7/Li,2n)/sup 45/V reaction using 14 to 16 MeV /sup 7/Li. These studies, comparison with mirror nucleus /sup 45/Ti, consideration of the Coulomb displacement energies, and observation of quasirotational band characteristics lead to the assignment of bound states in /sup 45/V of 7/2+ (1273 keV), 5/2+ (796.8 keV), 3/2+ (386.1 keV), 3/2- (57.2 keV), 5/2- (56.4 keV), and 7/2- (ground state). The identification by /sup 45/V was further confirmed by a /sup 7/Li + /sup 40/Ca excitation function study and by the observation of /sup 45/V in gamma-gamma and neutron-gamma coincidence studies using the /sup 40/Ca(/sup 6/Li,n)/sup 45/V reaction. The angular distribution of gamma rays of /sup 45/Ti was measured and resulted in a J/sup ..pi../ assignment of 13/2- to the 2656 keV level in /sup 45/Ti. Since the production cross section of /sup 45/V is very small, most /sup 45/V gamma rays do not appear in gamma ray singles, so no conclusions could be drawn about the J/sup ..pi../ of /sup 45/V levels from this experiment. The beta decay half-life of /sup 45/V was determined to be 410 +- 50 msec by a pulsed-beam /sup 6/Li + /sup 40/Ca study. Negative results of a search for the 40 keV 5/2- ..-->.. 7/2- (ground state) transition of /sup 45/Ti following /sup 45/V beta decay provided an upper limit of about 12% on possible Gamow-Teller branching to the 5/2- state in /sup 45/Ti in the beta decay of /sup 45/V.

• Research Organization: Washington Univ., Seattle (USA)
• OSTI ID: 5229013
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BARYONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
CALCIUM 40 TARGET
CHARGED-PARTICLE REACTIONS
DATA
DECAY
DIRECT REACTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
EXPERIMENTAL DATA
FERMIONS
HADRONS
HALF-LIFE
HEAVY ION REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
LITHIUM 7 REACTIONS
MANY-NUCLEON TRANSFER REACTIONS
MULTI-NUCLEON TRANSFER REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
SPIN
TARGETS
TRANSFER REACTIONS
VANADIUM 45
VANADIUM ISOTOPES