Spectroscopy of Ge-74: 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
The first heavy ion fusion-evaporation reaction study for Ge-74 has been performed through the reaction channel Zn-70(Li-7, 2np)(74)Geat 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 Ge-72,Ge-76 isotopes, an intermediate pattern of energy staggering S(I) is observed in the gamma band of Ge-74. The collective structure of Ge-74, including the excitation energies and transition probabilities of ground-state band and gamma band, is reproduced by the state-of-the-art five-dimensional collective Hamiltonian (5DCH) model constructed from the covariant density functional. By including the Ge-72,Ge-76,Ge-78 isotopes, sys...
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