gamma. decay of states in /sup 47/Cr

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.26.456· OSTI ID:6711429

Hardie, G; Gronemeyer, S A; Meyer-Schuetzmeister, L; Elwyn, A J

States in /sup 47/Cr were studied using the /sup 46/Ti(/sup 3/He,2n) /sup 47/Cr reaction with 22-MeV /sup 3/He ions and the /sup 40/Ca(/sup 12/C,..cap alpha..n) /sup 47/Cr reaction with 38-MeV /sup 12/C ions. Prompt and delayed ..gamma..-..gamma.. coincidence studies were performed. The following decay scheme was established (energies in keV): (15/2)/sup -//sub 1322.3//sup arrow-right/ (11/2)/sup -//sub 1158.3//sup arrow-right/ (7/2)/sup -//sub 75.4//sup arrow-right/ (5/2)/sup -//sub 99.3//sup arrow-right/ (3/2)/sup -/(g.s.). In addition, the (3/2)/sup +/ state was determined to have an excitation energy of 471.5 keV and was found to decay to the (5/2)/sup -/ state. Since /sup 47/Cr has T/sub z/ = (1/2) and is the mirror of the well-known /sup 47/V nucleus, Coulomb displacement energies were deduced. The variation of Coulomb displacement energy with mass number is discussed for f/sub 7/2/ shell nuclei. In addition, we used the measured energies for the first (3/2)/sup +/ states in T = (1/2) mirror pairs of f/sub 7/2/ shell nuclei to determine the average Coulomb interaction energy between a d/sub 3/2/ hole and an f/sub 7/2/ particle, and found an increase in magnitude with increasing mass number.

• Research Organization: Western Michigan University, Kalamazoo, Michigan 49008
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6711429
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 26:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BARYONS
CALCIUM 40 TARGET
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
CHROMIUM 47
CHROMIUM ISOTOPES
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
COULOMB FIELD
DATA
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FERMIONS
GAMMA RADIATION
HADRONS
HEAVY ION REACTIONS
HELIUM 3 REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MEV RANGE
MEV RANGE 10-100
MIRROR NUCLEI
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
RADIATIONS
SPIN
TARGETS
TITANIUM 46 TARGET