First observation of band structure in As 76: Possible chirality and octupole correlations

W. Z. Xu, D. P. Sun, S. Y. Wang, R. A. Bark, H. Hua, J. Meng, S. Q. Zhang, P. Jones, S. M. Wyngaardt, C. Liu, S. Wang, G. Y. Li, L. Mu, H. F. Bai, X. Xiao, Z. Q. Li, N. B. Zhang, H. Jia, R. J. Guo, X. C. HanB. Qi, C. Y. Niu, C. G. Wang, 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, N. A. Khumalo, O. Shirinda, K. Sowazi

Research output: Contribution to journalArticlepeer-review

Abstract

High-spin states in As76 have been observed for the first time by using the He4+Ge74 reaction at beam energies of 58.6 and 62.6 MeV. Two positive-parity and three negative-parity bands have been found in As76. The two positive-parity bands with πg9/2 - νg9/2 configurations are tentatively interpreted as chiral doublet bands, which are supported by triaxial particle rotor model calculations. The electric dipole transitions linking the yrast positive- and negative-parity bands are also observed in this work, implying the possible presence of octupole correlations in As76.

Original languageEnglish
Article number044303
JournalPhysical Review C
Volume109
Issue number4
DOIs
Publication statusPublished - Apr 2024
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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