Measurement of pair emission from the 2. 8-MeV parity-mixed doublet of /sup 21/Ne

Journal Article · Mon Dec 14 04:00:00 EST 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.47.1720· OSTI ID:5622568

McDonald, A B; Earle, E D; Simpson, J J; Robertson, R G.H.; Mak, H B

The branching ratio for pair emission for the ground-state transition from the J/sup ..pi../ = 1/2/sup -/, 2789-keV level of /sup 21/Ne has been measured relative to the branching ratio for the transition from the J/sup ..pi../ = 1/2/sup +/, 2796-keV level. The result indicates that the former transition is predominantly E1 in multipolarity (delta(M2/E1)<0.6) and therefore that measurements of ..gamma..-ray circular polarization for this transition are very sensitive to parity mixing in the spin-1/2 doublet.

• Research Organization: Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario K0J 1J0, Canada
• OSTI ID: 5622568
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 47:24; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BRANCHING RATIO
E1-TRANSITIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
FERMIONS
GAMMA RADIATION
INTERACTIONS
INVARIANCE PRINCIPLES
IONIZING RADIATIONS
ISOTOPES
LEPTONS
LIFETIME
LIGHT NUCLEI
M2-TRANSITIONS
MULTIPOLE TRANSITIONS
NEON 21
NEON ISOTOPES
NUCLEI
P INVARIANCE
PAIR PRODUCTION
PARITY
PARTICLE PROPERTIES
POLARIZATION
POSITRONS
RADIATIONS
SPIN
STABLE ISOTOPES