Band-crossing Phenomena in Hf-167,Hf-168 and W-170,W-171
作者： H.F.R. Arciszewski , H.J.M Aarts , R. Kamermans , C.J. Van Der Poel , R. Holzmann
DOI: 10.1016/0375-9474(83)90364-0
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摘要: Abstract High-spin states in 167,168Hf and 170, 171W have been excited by the reactions 159 Tb ( 14 N , x n ) 173 − Hf 155 Gd 20 Ne 175 W . The yrast bands observed up to J π = 49 2 + 167Hf, Jπ 28+ 168Hf, 45 22+ 170W. Both even-even nuclei display a strong backbend around 14+, whereas 167Hf shows an upbend at ω ∼- 0.33 MeV exhibits progressive gain aligned angular momentum above 0.26 MeV. At even higher rotational frequencies, bridges found central valleys of γ-γ correlation matrices 0.42 0.52 for isotopes 0.45 0.47 isotopes. Deduced moments inertia using data show smooth increase about rigid-sphere value 0.5 are satisfactorily accounted cranked shell-model calculations. In particular, qualitative interpretation is given experimentally systematic difference strength interaction potential 95 97 W.
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