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From the same journal

From the same journal

Fine structure in the α decay of 223U

Research output: Contribution to journalArticlepeer-review


  • M.D. Sun
  • Z. Liu
  • T.H. Huang
  • B. Ding
  • J.G. Wang
  • X.Y. Liu
  • H.Y. Lu
  • D.S. Hou
  • Z.G. Gan
  • H.B. Yang
  • L. Ma
  • Z.Y. Zhang
  • L. Yu
  • Jian Jiang
  • K.L. Wang
  • M.L. Liu
  • J. Li
  • X. Wang
  • A.H. Feng
  • C.J. Lin
  • L.J. Sun
  • N.R. Ma
  • W. Zuo
  • H.S. Xu
  • X.H. Zhou
  • G.Q. Xiao
  • C. Qi
  • F.S. Zhang


Publication details

JournalPhysics Letters B
DateAccepted/In press - 8 Nov 2019
DateE-pub ahead of print - 14 Nov 2019
DatePublished (current) - 20 Jan 2020
Number of pages5
Early online date14/11/19
Original languageEnglish


Fine structure in the α decay of 223U was observed in the fusion-evaporation reaction 187Re(40Ar, p3n) by using fast digital pulse processing technique. Two α-decay branches of 223U feeding the ground state and 244 keV excited state of 219Th were identified by establishing the decay chain 223U →α1 219Th →α2 215Ra →α3 211Rn. The α-particle energy for the ground-state to ground-state transition of 223U was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62−10+14 μs. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced α-decay width, a weakening octupole deformation in the ground state of 223U relative to its lighter isotones 219Ra and 221Th was suggested.

Bibliographical note

© 2019 The Author(s)

    Research areas

  • Fine structure, decay, Spin and parity, Reduced -decay width, Quadrupole-octupole deformation


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