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DECAY OF Sc$sup 42$m AND THE LEVELS OF Ca$sup 4$$sup 2$

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
;
A 62.0 plus or minus 0.4-sec isomer, Sc/sup 42m/, has been observed which decays by emission of a positron group of end-point energy 2.87 plus or minus 0.10 Mev to an excited state in Ca/sup 42/ at 3.191 Mev, followed by a cascade of three gamma rays of energies 0.438 plus or minus Ca/sup 42/ and their assigned spins are: 1.523 Mev, 2+; 1,836 Mev, O+; 2.424 Mev, 2+(1+); 2.750 Mev, 4+; and 3.191 Mev, 6+. The spin of Sc/sup 42m/ is 7+. Studies of the reaction Ca/sup 40/ (He/sup 3/,p) showed that the first and second excited states of Sc/sup 42/ are at 0.67 plus or minus 0.03 and 1.58, 0.05 Mev, respectively, the former being Sc/sup 42m/. The excitation function for the al trends of levels in even f/sub 7/2 nuclides are rather well explained by two treatments of the jj-coupling model, with exceptions for Ca/sup 44/ and Ca/sup 42/. (auth)
Research Organization:
Massachusetts Inst. of Tech., Cambridge
NSA Number:
NSA-17-017218
OSTI ID:
4750169
Report Number(s):
TID-17285; 0031-899X
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 129; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ALPHA PARTICLES
CALCIUM 40
CALCIUM 42
CALCIUM 44
CROSS SECTIONS
DECAY
EMISSION
ENERGY LEVELS
EXCITATION
GAMMA RADIATION
HELIUM 3
INTERACTIONS
ISOMERS
MEASURED VALUES
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARITY
PHYSICS
POSITRONS
PROTONS
SCANDIUM 42
SCATTERING
SPIN