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Isomeric decay of 67Fe --Evidence for deformation

  • M. Sawicka
  • J.M. Daugas
  • H. Grawe
  • S. Cwiok
  • D.L. Balabanski
  • R. Béraud
  • C. Bingham
  • C. Borcea
  • M. La Commara
  • G. de France
  • G. Georgiev
  • M. Górska
  • R. Grzywacz
  • M. Hass
  • M. Hellström
  • Z. Janas
  • M. Lewitowicz
  • H. Mach
  • I. Matea
  • G. Neyens
  • C. O' Leary
  • F. de Oliveira Santos
  • R.D. Page
  • M. Pfützner
  • Zs. Podolyák
  • K. Rykaczewski
  • M. Stanoiu
  • J. Żylicz

Abstract:

Decay-spectroscopy study of the 67mFe isomer has been performed at GANIL. This isomer is found to have an energy of 387 keV and a half-life of 75(21) μs. An intermediate excited state is introduced at 367 keV. The results are interpreted in terms of various nuclear models, and a deformed shape is inferred for 67Fe.

PACS. 25.70.Mn Projectile and target fragmentation – 21.10.Tg Lifetimes – 27.50.+e 59 ≥ A ≥ 89 – 21.60.Cs Shell model 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2003

Authors and Affiliations

  • M. Sawicka
    • 1
  • J.M. Daugas
    • 2
  • H. Grawe
    • 3
  • S. Cwiok
    • 4
  • D.L. Balabanski
    • 5
  • R. Béraud
    • 7
  • C. Bingham
    • 6
  • C. Borcea
    • 8
  • M. La Commara
    • 9
  • G. de France
    • 2
  • G. Georgiev
    • 5
  • M. Górska
    • 3
  • R. Grzywacz
    • 1
  • M. Hass
    • 10
  • M. Hellström
    • 3
  • Z. Janas
    • 1
  • M. Lewitowicz
    • 2
  • H. Mach
    • 11
  • I. Matea
    • 2
  • G. Neyens
    • 5
  • C. O' Leary
    • 12
  • F. de Oliveira Santos
    • 2
  • R.D. Page
    • 12
  • M. Pfützner
    • 1
  • Zs. Podolyák
    • 13
  • K. Rykaczewski
    • 1
  • M. Stanoiu
    • 2
  • J. Żylicz
    • 1
  1. 1.Institute of Experimental Physics, Warsaw University, PL-00681 Warsaw, Hoża 69, PolandPL
  2. 2.GANIL BP 5027, 14076 Caen Cedex 5, FranceFR
  3. 3.Gesellschaft für Schwerionenforschung mbH, Darmstadt, D-64291 Darmstadt, GermanyDE
  4. 4.Faculty of Physics, Warsaw University of Technology, PL-00662 Warsaw, Koszykowa 75, PolandPL
  5. 5.University of Leuven, IKS, Celestijnenlaan 200 D, B-3001 Leuven, BelgiumBE
  6. 6.University of Tennessee, Knoxville, TN 37996, USAUS
  7. 7.IPN Lyon, 69622 Villeurbane Cedex, FranceFR
  8. 8.IAP Bucharest-Marguele P.O. Box MG6, RomaniaRO
  9. 9.Department of Physics, University of Naples “Federico II", I-80126 Naples, ItalyIT
  10. 10.Department of Particle Physics, The Weizmann Institute of Science, 76100 Rehovot, IsraelIL
  11. 11.Department of Radiation Sciences, Uppsala University, S-61182, Nyköping, SwedenSE
  12. 12.Oliver Lodge Laboratory, Department of Physics, University of Liverpool, L69 7ZE, UKGB
  13. 13.Department of Physics, University of Surrey, Guildford, GU2 7XH, UKGB

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