Spectroscopy of Yb 155: Structure evolution in the N=85 isotones

X. Q. Li, C. Xu, S. Q. Zhang, H. Hua, J. Meng, R. A. Bark, Q. B. Chen, C. Y. Niu, R. Han, S. M. Wyngaardt, S. Y. Wang, S. Wang, B. Qi, L. Liu, L. H. Zhu, Z. Shi, G. L. Zhang, B. H. Sun, X. Y. Le, C. Y. SongY. L. Ye, D. X. Jiang, F. R. Xu, Z. H. Li, J. J. Sun, Y. Shi, P. W. Zhao, W. Y. Liang, C. G. Li, C. G. Wang, X. C. Chen, Z. H. Li, D. P. Sun, C. Liu, Z. Q. Li, P. Jones, E. A. Lawrie, J. J. Lawrie, M. Wiedeking, T. D. Bucher, T. Dinoko, B. V. Kheswa, L. Makhathini, S. N.T. Majola, J. Ndayishimye, S. P. Noncolela, O. Shirinda, J. Gál, G. Kalinka, J. Molnár, B. M. Nyakó, J. Timár, K. Juhász, M. Arogunjo

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2 Citations (Scopus)

Abstract

High-spin states in Yb155 have been studied via the Sm144(O16,5n)Yb155 reaction at a beam energy of 118 MeV. One negative-parity and one positive-parity cascade built on the νf7/2 and νi13/2 states, respectively, are established for the first time. The structures observed in Yb155 are compared with those in the neighboring N=85 isotones and with semiempirical shell-model (SESM) calculations. According to adiabatic and configuration-fixed constrained triaxial covariant density functional theory (CDFT) calculations, a coexistence of prolate and oblate shapes is predicted to exist in Yb155.

Original languageEnglish
Article number024337
JournalPhysical Review C
Volume94
Issue number2
DOIs
Publication statusPublished - Aug 24 2016

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Li, X. Q., Xu, C., Zhang, S. Q., Hua, H., Meng, J., Bark, R. A., Chen, Q. B., Niu, C. Y., Han, R., Wyngaardt, S. M., Wang, S. Y., Wang, S., Qi, B., Liu, L., Zhu, L. H., Shi, Z., Zhang, G. L., Sun, B. H., Le, X. Y., ... Arogunjo, M. (2016). Spectroscopy of Yb 155: Structure evolution in the N=85 isotones. Physical Review C, 94(2), [024337]. https://doi.org/10.1103/PhysRevC.94.024337