β-γ and β-delayed neutron-γ decay of neutron-rich copper isotopes

  • A. Korgul
  • , K. P. Rykaczewski
  • , J. A. Winger
  • , S. V. Ilyushkin
  • , C. J. Gross
  • , J. C. Batchelder
  • , C. R. Bingham
  • , I. N. Borzov
  • , C. Goodin
  • , R. Grzywacz
  • , J. H. Hamilton
  • , W. Królas
  • , S. N. Liddick
  • , C. Mazzocchi
  • , C. Nelson
  • , F. Nowacki
  • , S. Padgett
  • , A. Piechaczek
  • , M. M. Rajabali
  • , D. Shapira
  • K. Sieja, E. F. Zganjar

    Research output: Contribution to journalArticlepeer-review

    13 Scopus citations

    Abstract

    Theβ-decay properties of neutron-rich Cu isotopes produced in proton-induced fission of 238U were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. The data were collected using high-resolution online mass separation, reacceleration, and digital β-γ spectroscopy methods. An improved decay scheme of N=49 78Cu and the first observation of N=50 79Cu β-delayed neutron decay followed by a gamma transition are reported. Spin and parity (5-) are deduced for 78gsCu. The β-delayed neutron branching ratios (Pβn) for the 77Cu and 79Cu precursors are analyzed with the help of nuclear structure models.

    Original languageEnglish
    Article number024307
    JournalPhysical Review C - Nuclear Physics
    Volume86
    Issue number2
    DOIs
    StatePublished - Aug 10 2012

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