Core-excited high-spin isomers in /sup 212/Rn

Journal Article · Mon Aug 15 04:00:00 EDT 1977 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.39.389· OSTI ID:7318985

Horn, D; Haeusser, O; Faestermann, T; McDonald, A B; Alexander, T K; Beene, J R; Herrlander, C J

We have observed isomeric states in /sup 212/Rn with very high angular momenta (up to J/sup ..pi../ = 30/sup +/). The four isomers of highest spin contain core-excited neutron configurations, the spins of which are strongly aligned with those of the valence protons. The isomerism appears to result from a lowering of the excitation energies by 1 to 2 MeV compared to a sum of the unperturbed values for the constituent configurations.

• Research Organization: Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, Canada KOJ 1JO
• OSTI ID: 7318985
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 39:7; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
BARYONS
CARBON 13 REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
DELAYED GAMMA RADIATION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FERMIONS
GAMMA RADIATION
GYROMAGNETIC RATIO
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
HIGH SPIN STATES
IONIZING RADIATIONS
ISOMERIC NUCLEI
ISOMERIC TRANSITIONS
ISOTOPES
LIFETIME
MERCURY 204 TARGET
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
RADIATIONS
RADIOISOTOPES
RADON 212
RADON ISOTOPES
TARGETS