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Lifetimes in the ground-state band and the structure of 118Te

  • A.A. Pasternak
  • J. Srebrny
  • A.D. Efimov
  • V.M. Mikhajlov
  • E.O. Podsvirova
  • Ch. Droste
  • T. Morek
  • S. Juutinen
  • G.B. Hagemann
  • M. Piiparinen
  • S. Törmänen
  • A. Virtanen

Abstract:

Lifetimes of excited states in 118Te have been measured using the Doppler Shift Attenuation (DSA) and Recoil Distance (RD) methods in the 109Ag(13C, p3n) reaction at a beam energy of 54 MeV. Lifetime values of the ground-state band levels with spins Iπ = 2+-16+ have been obtained. The excitation energies and B(E2) values are interpreted in the framework of a version of IBFM ( IBM + 2qp) with the maximum boson number exceeding its standard value. A satisfactory agreement with experimental level scheme and B(E2) values for the ground-state band is achieved.

PACS. 21.10.Tg Lifetimes – 21.60.Fw Models based on group theory – 23.20.Lv Gamma transitions and level energies – 27.60.+j 90≤A≤149 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2002

Authors and Affiliations

  • A.A. Pasternak
    • 1
  • J. Srebrny
    • 2
  • A.D. Efimov
    • 1
  • V.M. Mikhajlov
    • 3
  • E.O. Podsvirova
    • 1
  • Ch. Droste
    • 2
  • T. Morek
    • 2
  • S. Juutinen
    • 4
  • G.B. Hagemann
    • 5
  • M. Piiparinen
    • 4
  • S. Törmänen
    • 5
  • A. Virtanen
    • 4
  1. 1.Cyclotron Laboratory, A.F. Ioffe Physical Technical Institute, 194021, St. Petersburg, RussiaRU
  2. 2.Nuclear Physics Division, IEP, Warsaw University, Hoża 69, 00-681 Warsaw, PolandPL
  3. 3.Physical Institute of St. Petersburg State University, 198904, St. Petersburg, RussiaRU
  4. 4.Department of Physics, University of Jyväskylä, P.O Box 35, FIN-40351, Jyväskylä, FinlandFI
  5. 5.The Niels Bohr Institute, Blegdamsvej 17, DK-2100, Copenhagen, DenmarkDK

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