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Collectivity evolution in the neutron-rich Pd isotopes toward the N=82 shell closure

  • H. Wang*
  • , N. Aoi
  • , S. Takeuchi
  • , M. Matsushita
  • , P. Doornenbal
  • , T. Motobayashi
  • , D. Steppenbeck
  • , K. Yoneda
  • , H. Baba
  • , L. Cáceres
  • , Zs Dombrádi
  • , K. Kobayashi
  • , Y. Kondo
  • , J. Lee
  • , K. Li
  • , H. Liu
  • , R. Minakata
  • , D. Nishimura
  • , H. Otsu
  • , S. Sakaguchi
  • H. Sakurai, H. Scheit, D. Sohler, Y. Sun, Z. Tian, R. Tanaka, Y. Togano, Zs Vajta, Z. Yang, T. Yamamoto, Y. Ye, R. Yokoyama
*此作品的通讯作者
  • Peking University
  • RIKEN
  • The University of Osaka
  • Rikkyo University
  • Commissariat à l’énergie atomique et aux énergies alternatives
  • Institute for Nuclear Research
  • Institute of Science Tokyo
  • The University of Tokyo
  • Technische Universität Darmstadt

科研成果: 期刊稿件文章同行评审

摘要

The neutron-rich, even-even 122,124,126Pd isotopes were studied via in-beam γ-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory. Excited states at 499(9), 590(11), and 686(17) keV were found in the three isotopes, which we assign to the respective 21+→0gs+ decays. In addition, candidates for the 41+ states at 1164(20) and 1300(22) keV were observed in 122Pd and 124Pd, respectively. The resulting Ex(21+) systematics are similar to the Xe (Z=54) isotopic chain and theoretical predictions by the proton-neutron interacting boson model (IBM-2), indicating the magic nature of N=82 in the Pd isotopes.

源语言英语
文章编号054318
期刊Physical Review C - Nuclear Physics
88
5
DOI
出版状态已出版 - 19 11月 2013
已对外发布

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