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. Lawrie
  • J. 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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