Decay of- A Three-Quasiparticle Multiplet in
- 1 March 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 5 (3), 1084-1103
- https://doi.org/10.1103/physrevc.5.1084
Abstract
We have studied the rays emitted following the decay of 22.1-min with Ge(Li) and NaI(Tl) detectors in various singles, coincidence, and anticoincidence configurations, including Ge(Li)-Ge(Li) two-dimensional "megachannel" coincidence experiments. Of the 47 rays definitely established as belonging to decay, all but six very weak ones have been placed in a consistent decay scheme. The energies in keV [and assignments] of the states in populated by the decay of are 0 [], 196.6 [], 628.6 [], 804.5 [], (837.1) [], 974.0 [], 1108.1 [], 1167.2 [], 1313.2 [], 1414.8 [], (1834.0) [], 1983.1 [], 2063.5 [], 2091.6 [], 2119.0 [], and 2702.4 []. Less than 0.2% of the decay of proceeds via an isomeric transition to 11.3-min . Two-thirds of the electron-capture decay goes to the six (possibly seven) highest-lying states in , another example analogous to decay of the population of a well-defined three-quasiparticle multiplet by an nuclide. In simple shell-model terms this can be written as . Most of the remaining states can be characterized quite satisfactorily as specific single-particle and core-coupled states. The behavior of these states allows us to add considerably to the systematics of shell-model orbits and their occupations in this region below .
Keywords
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