Spectroscopy of 74Ge: From soft to rigid triaxiality
- Sun, J.J.
- Shi, Z.
- Li, X.Q.
- Hua, H.
- Xu, C.
- Chen, Q.B.
- Zhang, S.Q.
- Song, C.Y.
- Meng, J.
- Wu, X.G.
- Hu, S.P.
- Zhang, H.Q.
- Liang, W.Y.
- Xu, F.R.
- Li, Z.H.
- Li, G.S.
- He, C.Y.
- Zheng, Y.
- Ye, Y.L.
- Jiang, D.X.
- Cheng, Y.Y.
- He, C.
- Han, R.
- Li, Z.H.
- Li, C.B.
- Li, H.W.
- Wang, J.L.
- Liu, J.J.
- Wu, Y.H.
- Luo, P.W.
- Yao, S.H.
- Yu, B.B.
- Cao, X.P.
- Sun, H.B.
DOIAbstract
AbstractThe first heavy ion fusion–evaporation reaction study for 74Ge has been performed through the reaction channel Zn70(Li7,2np)Ge74 at beam energies of 30 and 35 MeV. Previously known yrast band is extended to higher spins and five new collective bands are established. Based on comparison with the neighboring 72,76Ge isotopes, an intermediate pattern of energy staggering S(I) is observed in the γ band of 74Ge. The collective structure of 74Ge, including the excitation energies and transition probabilities of ground-state band and γ band, is reproduced by the state-of-the-art five-dimensional collective Hamiltonian (5DCH) model constructed from the covariant density functional. By including the 72,76,78Ge isotopes, systematical investig...
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