6533b854fe1ef96bd12ae856
RESEARCH PRODUCT
Nuclear Spins of the IsomersHg191m−185mDetermined by On-Line Quantum-Beat Spectroscopy
H.-j. KlugeH. FischerT. KuhlH. KremmlingP. DabkiewiczHans A. Schuesslersubject
Coupling constantPhysicsAngular momentumQuantum beatsIsotopeSpinsPhysics::Atomic and Molecular ClustersGeneral Physics and AstronomyPhysics::Chemical PhysicsAtomic physicsSpectroscopyHyperfine structureExcitationdescription
The nuclear spins of the very neutron-deficient $^{191m\ensuremath{-}185m}\mathrm{Hg}$ isomers were measured on line at the mass separator ISO LIDE at CERN using pulsed-laser excitation and observation of the time-resolved quantum beats from selected hyperfine-structure states. The spins of these isomers are with $I=\frac{13}{2}$ equal to those of the long-lived isomers $^{199m\ensuremath{-}193m}\mathrm{Hg}$ already known. The persistence of this spin value for eight isomers is explained by the model of rotation-aligned coupling.
year | journal | country | edition | language |
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1979-11-05 | Physical Review Letters |