Abstract
The excited levels of 179Hf are investigated using the thermal neutron capture γ-ray and conversion electron spectra measured with the bent crystal diffraction spectrometer in Risø and the β-spectrograph in Riga. The level scheme contains the odd parity rotational bands 7 2 −[514], 1 2 −[510], 5 2 −[512], 1 2 −[521], 3 2 −[512] and 7 2 −[503] . The energies of these levels and the intensity ratios of the transitions between them are calculated taking into account the rotation-particle coupling (RPC). The following even parity levels are proposed: 859.0 and 942.2 keV ( 7 2 + and 9 2 + of the 7 2 + [633] band) ; 1004.1 and 1079.2 keV ( 5 2 + and 7 2 + of the 9 2 +[624] + Q(22) band) ; 1186.0, 1199.2 and 1296.4 keV ( 1 2 +, 5 2 + and 3 2 + of the 1 2 +[651] band) . The levels at 1249.8, 1269.7, 1432.9, 1482.2 and 1755.5 keV, supported by the analysis of the γγ coincidence spectrum and Ge(Li) singles data, are discussed.
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