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From the same journal

Decay half-lives of Co 76,77, Ni 79,80, and Cu 81: Experimental indication of a doubly magic Ni 78

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Published copy (DOI)


  • Z. Y. Xu
  • S. Nishimura
  • G. Lorusso
  • F. Browne
  • P. Doornenbal
  • G. Gey
  • H. S. Jung
  • Z. Li
  • M. Niikura
  • P. A. Söderström
  • T. Sumikama
  • J. Taprogge
  • Zs Vajta
  • H. Watanabe
  • J. Wu
  • A. Yagi
  • K. Yoshinaga
  • H. Baba
  • S. Franchoo
  • T. Isobe
  • P. R. John
  • I. Kojouharov
  • S. Kubono
  • N. Kurz
  • I. Matea
  • K. Matsui
  • D. Mengoni
  • P. Morfouace
  • D. R. Napoli
  • F. Naqvi
  • H. Nishibata
  • A. Odahara
  • E. Şahin
  • H. Sakurai
  • H. Schaffner
  • I. G. Stefan
  • D. Suzuki
  • V. Werner


Publication details

JournalPhysical Review Letters
DatePublished - 16 Jul 2014
Issue number3
Original languageEnglish


The half-lives of 20 neutron-rich nuclei with Z=27-30 have been measured at the RIBF, including five new half-lives of Co76(21.7-4.9+6.5ms), Co77(13.0-4.3+7.2ms), Ni79(43.0-7.5+8.6ms), Ni80(23.9-17.2+26.0ms), and Cu81(73.2±6.8ms). In addition, the half-lives of Co73-75, Ni74-78, Cu78-80, and Zn80-82 were determined with higher precision than previous works. Based on these new results, a systematic study of the β-decay half-lives has been carried out, which suggests a sizable magicity for both the proton number Z=28 and the neutron number N=50 in Ni78.

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