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DSA lifetime measurements and structure of positive-parity bands of 120Xe

  • A.A. Pasternak
  • Y. Sasaki
  • A.D. Efimov
  • V.M. Mikhajlov
  • T. Hayakawa
  • Y. Toh
  • M. Oshima
  • Y. Hatsukawa
  • J. Katakura
  • N. Shinohara
  • Z. Liu
  • K. Furuno
Short note

Abstract:

Lifetimes of excited states in 120Xe have been measured by the Doppler-shift attenuation method in the 111Cd( 12C,3n) reaction at a beam energy of E = 56 MeV. Lifetime values for 22 states were obtained. The excitation energies and E2-transition probabilities of the yrast band, γ-band and its continuation are interpreted in the framework of a version of IBFM (IBM + 2 q.p.). A reasonable description of the B(E2) behavior in the backbending region 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 2000

Authors and Affiliations

  • A.A. Pasternak
    • 1
  • Y. Sasaki
    • 2
  • A.D. Efimov
    • 1
  • V.M. Mikhajlov
    • 3
  • T. Hayakawa
    • 4
  • Y. Toh
    • 4
  • M. Oshima
    • 4
  • Y. Hatsukawa
    • 4
  • J. Katakura
    • 4
  • N. Shinohara
    • 4
  • Z. Liu
    • 5
  • K. Furuno
    • 2
  1. 1.Cyclotron Laboratory, A.F. Ioffe Physical Technical Institute, 194021, St. Petersburg, RussiaRU
  2. 2.Tandem Accelerator Center, University of Tsukuba, Tennoudai, Tsukuba 305-8577, JapanJP
  3. 3.Physical Institute of St. Petersburg State University, 198904, St. Petersburg, RussiaRU
  4. 4.Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki 319-1195, JapanJP
  5. 5.RIKEN, Wako-shi, Saitama 351-0106, JapanJP

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