Elsevier

Nuclear Physics A

Volume 196, Issue 2, 27 November 1972, Pages 362-368
Nuclear Physics A

The decay properties of 19.0 min 162Yb

https://doi.org/10.1016/0375-9474(72)90971-2Get rights and content

Abstract

The decay properties of 162Yb (19.0 min) were studied with Ge(Li) and Si(Li) spectrometers; γ-γ and e-γ coincidence measurements were performed. In contradiction to earlier results, the 44.7 keV γ-ray is found to be mainly an M1 transition, indicating that its initial and final levels are the 2 and 1 members of a K = 1 ground-state rotational band. Nilsson assignments to all levels involved are discussed. An upper limit of 15 ns determined for the half-life of the 163.46 keV state means that the F-selection rule in its decay does not act strongly.

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On leave from the Institute of Nuclear Sciences “Boris Kidric”, Beograd, Yugoslavia.

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