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Detailed spectroscopy of the chiral-twin candidate bands in 136Pm

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Published copy (DOI)


  • D. J. Hartley
  • L. L. Riedinger
  • M. A. Riley
  • D. L. Balabanski
  • F. G. Kondev
  • R. W. Laird
  • J. Pfohl
  • D. E. Archer
  • T. B. Brown
  • R. M. Clark
  • M. Devlin
  • P. Fallon
  • I. M. Hibbert
  • D. T. Joss
  • D. R. LaFosse
  • P. J. Nolan
  • N. J. O'Brien
  • E. S. Paul
  • D. G. Sarantites
  • R. K. Sheline
  • S. L. Shepherd
  • J. Simpson
  • Jing Ye Zhang
  • P. B. Semmes
  • F. Dönau


Publication details

JournalPhysical Review C - Nuclear Physics
DatePublished - 1 Jan 2001
Issue number3
Number of pages5
Pages (from-to)313041-313045
Original languageEnglish


The chiral-twin candidate bands recently observed in 136Pm have been extended to high spins [I=(21)] using the Gammasphere γ-ray spectrometer and the Microball charged-particle detector array. A more-detailed spectroscopy of the bands was possible, where the rotational alignments and B(M1)/B(E2) ratios confirm that both sequences have the πh11/2νh11/2 configuration. Particle-rotor calculations of intraband and interband transition strength ratios of the chiral-twin bands are compared with experimental values for the first time. Good agreement was found between the predicted transition strength ratios and the experimental values, thus supporting the possible chiral nature of the πh11/2νh11/2 configuration in 136Pm.

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