Revision of the K-Isomer in 190W

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Gamma rays from the decay of an isomer in W-190(116) have been observed following projectile fragmentation of a 1 GeV per nucleon Pb-208 beam. An earlier experiment indicated decay from a (10(-)) isomer to the ground state rotational band. Improved statistics have enabled gamma coincidence and time-difference measurements to be made which alter the previous interpretation. Blocked BCS calculations have also been used together with reduced hindrance factors to indicate possible values of spin-parity for the isomer.


  • G. F. Farrelly
  • Zs. Podolyak
  • S. J. Steer
  • S. Pietri
  • F. R. Xu
  • E. Werner-Malento
  • T. Shizuma
  • P. H. Regan
  • A. B. Garnsworthy
  • Robert Hoischen
  • M. Gorska
  • J. Gerl
  • H. J. Wollersheim
  • T. Kurtukian-Nieto
  • G. Benzoni
  • F. Becker
  • P. Bednarczyk
  • L. Caceres
  • P. Doornenbal
  • H. Geisserl
  • J. Grebosz
  • A. Kelic
  • I. Kojouharov
  • N. Kurz
  • F. Montes
  • W. Prokopowicz
  • T. Saito
  • H. Schaffner
  • S. Tashenov
  • A. Heinz
  • M. Pfuezner
  • A. Jungclaus
  • D. L. Balabanski
  • C. Brandau
  • A. M. Bruce
  • W. N. Catford
  • I. J. Cullen
  • Zs. Dombradi
  • E. Estevez
  • W. Gelletly
  • G. Ilie
  • J. Jolie
  • G. A. Jones
  • M. Kmiecik
  • F. G. Kondev
  • R. Kruecken
  • S. Lalkovski
  • H. L. Liu
  • Z. Liu
  • A. Maj
  • S. Myalski
  • S. Schwerrel
  • P. M. Walker
  • O. Wieland
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Pages (from-to)885-888
JournalActa Physica Polonica. Series B: Elementary Particle Physics, Nuclear Physics, Statistical Physics, Theory of Relativity, Field Theory
Issue number3
Publication statusPublished - 2009
Publication categoryResearch

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