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Identification of high- K rotation in Ba 130: Testing the consistency of electromagnetic observables

  • Y. H. Qiang
  • , C. M. Petrache*
  • , S. Guo
  • , P. M. Walker
  • , D. Mengoni
  • , Q. B. Chen
  • , B. F. Lv
  • , A. Astier
  • , E. Dupont
  • , M. L. Liu
  • , X. H. Zhou
  • , J. G. Wang
  • , D. Bazzacco
  • , A. Boso
  • , A. Goasduff
  • , F. Recchia
  • , D. Testov
  • , F. Galtarossa
  • , G. Jaworski
  • , D. R. Napoli
  • S. Riccetto, M. Siciliano, J. J. Valiente-Dobon, C. Andreoiu, F. H. Garcia, K. Ortner, K. Whitmore, B. Cederwall, E. A. Lawrie, I. Kuti, D. Sohler, T. Marchlewski, J. Srebrny, A. Tucholski, A. C. Dai, F. R. Xu
*此作品的通讯作者
  • CAS - Institute of Modern Physics
  • Lanzhou University
  • University of Chinese Academy of Sciences
  • Université Paris-Saclay
  • University of Surrey
  • National Institute for Nuclear Physics
  • Technical University of Munich
  • Laboratori Nazionali di Legnaro
  • Simon Fraser University
  • KTH Royal Institute of Technology
  • National Research Foundation
  • Institute for Nuclear Research
  • University of Warsaw
  • Peking University

科研成果: 期刊稿件文章同行评审

摘要

The band built on the Kπ=8-,T1/2=9.4 ms isomer of Ba130 has been identified, filling the gap in the systematics of the dipole bands built on the 8- isomers in the N=74 isotones from Xe128 to Gd138. The use of the GALILEO array in conjunction with its ancillaries EUCLIDES and Neutron Wall, helped to firmly place the newly identified transitions on top of the long-lived isomer. The extracted gK and gR gyromagnetic factors are in agreement with the 7/2+[404] - 9/2-[514] two-neutron Nilsson configuration. Particle-rotor model calculations give an understanding of the limited degree of K mixing. The experimental information on the Kπ=8- isomer of Ba130 is now the most complete among the K isomers of the N=74 isotones.

源语言英语
文章编号014307
期刊Physical Review C
99
1
DOI
出版状态已出版 - 8 1月 2019
已对外发布

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