Hindered decays from a non - yrast four - quasiparticle isomer in 164 Er
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چکیده
The half-life of a Kπ = 12+ isomer in 164Er has been measured to be 68(2) ns, and new decay pathways have been identified. These include highly K-forbidden γ-ray transitions directly to the ground-state rotational band, with reduced hindrance values that can be compared with those found for heavier nuclides. The new data support the interpretation that the level density is a key variable in determining K-forbidden transition rates. PACS numbers: 21.10.-k, 23.20.Lv, 27.70.+q
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تاریخ انتشار 2012