Evolution from quasivibrational to quasirotational structure in Tm 155 and yrast 27/2- to 25/2- energy anomaly in the A≈150 mass region

L. Liu, S. Y. Wang, S. Wang, H. Hua, S. Q. Zhang, J. Meng, R. A. Bark, S. M. Wyngaardt, B. Qi, D. P. Sun, C. Liu, Z. Q. Li, H. Jia, X. Q. Li, C. Xu, Z. H. Li, J. J. Sun, L. H. Zhu, P. Jones, E. A. LawrieJ. J. Lawrie, M. Wiedeking, T. D. Bucher, T. Dinoko, L. Makhathini, S. N.T. Majola, S. P. Noncolela, O. Shirinda, J. Gál, G. Kalinka, J. Molnár, B. M. Nyakó, J. Timár, K. Juhász, M. Arogunjo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Excited states in Tm155 have been populated via the reaction Sm144(O16, p4n)Tm155 at a beam energy of 118 MeV. The ground-state band has been extended and a new side band of the ground-state band is identified. E-GOS curves and potential energy surface calculations are employed to discuss the structure evolution of the ground-state band. The newly observed side band in Tm155 is discussed based on the spin/energy systematics. In particular, the phenomenon of seniority inversion is proposed in Tm155, and a systematic study of this phenomenon in the A≈150 mass region is performed.

Original languageEnglish
Article number044306
JournalPhysical Review C
Volume97
Issue number4
DOIs
Publication statusPublished - 10 Apr 2018
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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