Abstract
The half-lives of the (vi 13/2)2 I π=12+ isomers in190, 192pb were measured asT 1/2 =7.9(4) μs and 1.10(5) μs, respectively. The quadrupole moment and theg-factor of the corresponding state in194Pb were determined toQ=49(3) efm2 andg=−0.167(2) using the perturbed angular distribution method. Additionalg-factor and lifetime information was obtained for a number of isomers in194, 195, 196, 197, 198, 199, 200Pb also involvingi 13/2 neutrons. The results are discussed in comparison to a two-quasiparticle Tamm-Dancoff calculation in the full shell using the surface delta interaction.
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