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Evolution of octupole correlations in Ba 123

  • X. C. Chen
  • , J. Zhao
  • , C. Xu
  • , H. Hua
  • , T. M. Shneidman
  • , S. G. Zhou
  • , X. G. Wu
  • , X. Q. Li
  • , S. Q. Zhang
  • , Z. H. Li
  • , W. Y. Liang
  • , J. Meng
  • , F. R. Xu
  • , B. Qi
  • , Y. L. Ye
  • , D. X. Jiang
  • , Y. Y. Cheng
  • , C. He
  • , J. J. Sun
  • , R. Han
  • C. Y. Niu, C. G. Li, P. J. Li, C. G. Wang, H. Y. Wu, Z. H. Li, H. Zhou, S. P. Hu, H. Q. Zhang, G. S. Li, C. Y. He, Y. Zheng, C. B. Li, H. W. Li, Y. H. Wu, P. W. Luo, J. Zhong

科研成果: 期刊稿件文章同行评审

摘要

High-spin states of Ba123 have been studied via the Cd108(F19,3np)Ba123 fusion-evaporation reaction at a beam energy of 90 MeV. Several E1 transitions linking the positive-parity ν(d5/2+g7/2) band and negative-parity νh11/2 band are observed in Ba123 for the first time. Evidence for the existence of octupole correlations in Ba123 is presented based on the systematic comparisons of the B(E1)/B(E2) branching ratios and the energy displacements in odd-A Ba isotopes. The characteristics of octupole correlation in the odd-ABa123,125 are explained by the state-of-the-art multidimensionally-constrained relativistic mean-field model and cluster model based on the dinuclear system concept.

源语言英语
文章编号021301
期刊Physical Review C
94
2
DOI
出版状态已出版 - 1 8月 2016
已对外发布

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