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Beta-decay studies of neutron-rich Sc- Cr nuclei

  • L. Gaudefroy
  • O. SorlinEmail author
  • C. Donzaud
  • J. C. Angélique
  • F. Azaiez
  • C. Bourgeois
  • V. Chiste
  • Z. Dlouhy
  • S. Grévy
  • D. Guillemaud-Mueller
  • F. Ibrahim
  • K. -L. Kratz
  • M. Lewitowicz
  • S. M. Lukyanov
  • I. Matea
  • J. Mrasek
  • F. Nowacki
  • F. de Oliveira Santos
  • Yu. -E. Penionzhkevich
  • B. Pfeiffer
  • F. Pougheon
  • M. G. Saint-Laurent
  • M. Stanoiu
Article

Abstract.

The neutron-rich nuclei          2157, 58Sc,          2258-60Ti,          2360-63V,          2462-66Cr have been produced at Ganil via interactions of a 61.8A MeV 76Ge beam with a 58Ni target. Beta-decay studies have been performed using combined β- and γ-ray spectroscopy. Half-lives have been determined and β-decay schemes are proposed for 58Ti, 61V and 62Cr. From these studies, new hints for the existence of β-decaying isomers in 60V and in 62Mn are provided. These results are compared to shell model calculations. The role of the πf7/2- νf5/2 proton-neutron interaction is examined through its influence on the lifetime values.

PACS.

27.50.+e 59 ⩽ A ⩽ 89 23.40.-s β decay; double β decay; electron and muon capture 21.60.Cs Shell model 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2004

Authors and Affiliations

  • L. Gaudefroy
    • 1
  • O. Sorlin
    • 1
    Email author
  • C. Donzaud
    • 1
  • J. C. Angélique
    • 2
  • F. Azaiez
    • 1
  • C. Bourgeois
    • 1
  • V. Chiste
    • 1
  • Z. Dlouhy
    • 3
  • S. Grévy
    • 2
  • D. Guillemaud-Mueller
    • 1
  • F. Ibrahim
    • 1
  • K. -L. Kratz
    • 4
  • M. Lewitowicz
    • 5
  • S. M. Lukyanov
    • 6
  • I. Matea
    • 5
  • J. Mrasek
    • 3
  • F. Nowacki
    • 7
  • F. de Oliveira Santos
    • 5
  • Yu. -E. Penionzhkevich
    • 7
  • B. Pfeiffer
    • 4
  • F. Pougheon
    • 1
  • M. G. Saint-Laurent
    • 5
  • M. Stanoiu
    • 1
  1. 1.Institut de Physique NucléaireIN2P3-CNRSOrsay CedexFrance
  2. 2.ISMRALPCCaen CedexFrance
  3. 3.Nuclear Physics InstituteAS CRRezCzech Republic
  4. 4.Institut für KernchemieUniversität MainzMainzGermany
  5. 5.GANILCaen CedexFrance
  6. 6.JINRFLNRDubna, Moscow regionRussia
  7. 7.IReS, IN2P3-CNRSUniversité Louis PasteurStrasbourg CedexFrance

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