Abstract

Levels in174Hf excited in the decay of174Ta have been studied. Measurements of gamma-rays, conversion electrons and gamma-gamma-time coincidences were performed. The ground state band, the beta-vibrational band, the gamma-vibrational band with its head at 1226.81 keV, aK=3+ band at 1303.42 keV and aK=2− octupole band at 1308.67 keV were observed. Several 2+ levels withK=0 are excited. The mainβ+-branches proceed through allowed or first-forbidden transitions to the 2+ and 4+ levels of the ground state band. The character of theIπ=3(+) ground state of174Ta is discussed.

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