Completion of the mass-20 isospin quintet by employing a helium-jet-fed on-line mass separator

Journal Article · Mon Jan 01 00:00:00 EST 1979 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.42.43· OSTI ID:6333697

Moltz, D M; Aystoe, J; Cable, M D; von Dincklage, R D; Parry, R F; Wouters, J M; Cerny, J

Observation of ..beta..-delayed protons from the decay of the mass-separated T/sub g/ = : 2 nuclide /sup 20/Mg (t/sub 1/2/ approx. 95 ms) establishes the mass excess of the lowest T = 2 (0/sup +/) state in /sup 20/Na (13.42 +- 0.05 MeV), thereby completing the mass-20 isospin quintet. All members of this multiplet are bound to isospin-allowed particle-decay modes, providing the first test of the isobaric multiplet mass equation for such a quintet. Excellent agreement is observed using only the quadratic form of this equation.

• Research Organization: Department of Chemistry and Lawrence Berkeley Laboratory, University of California, Berkeley, California 720
• OSTI ID: 6333697
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 42:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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MAGNESIUM 20
BETA-PLUS DECAY
NEON 20 TARGET
SODIUM
ENERGY LEVELS
DELAYED PROTONS
HALF-LIFE
ISOBARIC NUCLEI
ISOSPIN
MASS FORMULAE
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NEON 19
NEUTRON SPECTRA
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SPARK CHAMBERS
ALKALI METALS
ALKALINE EARTH ISOTOPES
BARYONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
GAS TRACK DETECTORS
HADRONS
ISOTOPES
LIGHT NUCLEI
MAGNESIUM ISOTOPES
MEASURING INSTRUMENTS
METALS
MEV RANGE
NEON ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
PROTONS
RADIATION DETECTORS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
TARGETS
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