First evidence of an octupole rotational band in Ge isotopes

C. G. Wang, R. Han, C. Xu, H. Hua, R. A. Bark, S. Q. Zhang, S. Y. Wang, T. M. Shneidman, S. G. Zhou, J. Meng, S. M. Wyngaardt, A. C. Dai, F. R. Xu, X. Q. Li, Z. H. Li, Y. L. Ye, D. X. Jiang, C. G. Li, C. Y. Niu, Z. Q. ChenH. Y. Wu, D. W. Luo, S. Wang, D. P. Sun, C. Liu, Z. Q. Li, N. B. Zhang, R. J. Guo, P. Jones, E. A. Lawrie, J. J. Lawrie, J. F. Sharpey-Schafer, M. Wiedeking, S. N.T. Majola, T. D. Bucher, T. Dinoko, B. Maqabuka, L. Makhathini, L. Mdletshe, O. Shirinda, K. Sowazi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The spectroscopy of Ge71 has been investigated via the fusion-evaporation reaction Ge74(α,α3n)Ge71. Collective structures including a rotational band built on the 15/2- octupole state in Ge71 have been established. The observation of strong E1 transitions and the well-behaved rotational sequence built on the 15/2- octupole state provide the first experimental evidence of an octupole rotational band in Ge isotopes, suggesting an enhanced octupole correlation around N=40 in the A≈70 region. A newly developed semimicroscopic cluster model provides a good description of the octupole characteristics of Ge71.

Original languageEnglish
Article numberL011303
JournalPhysical Review C
Volume106
Issue number1
DOIs
Publication statusPublished - Jul 2022

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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