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      https://www.ias.ac.in/article/fulltext/pram/053/03/0425-0429

    • Keywords

       

      Heavy ion; γ − γ coincidence; DSAM; Woods-Saxon cranking; TRS

    • Abstract

       

      The lifetimes of the states of −ve parity 2-qp bands of N=40 nuclei 74Se and 76Kr were measured. The transition strengths and quadrupole moments, obtained from the lifetimes, show a large collectivity of such bands in both the nuclei. The alignment frequencies were calculated from Woods-Saxon cranking model. Previously suggested quasi proton nature of band 5 and 6 of 71Se were argued to be based on quasi neutron excitations. The total Routhian surface calculations suggest triaxial shapes with large +ve and −ve values of triaxiality parameter γ after proton and neutron alignments in these bands respectively.

    • Author Affiliations

       

      G Mukherjee1 2 P Joshi1 S N Roy2 S Datta3 R P Singh1 S Muralithar1 R K Bhowmik1

      1. Nuclear Science Centre, Post Box 10502, New Delhi - 110 067, India
      2. Department of Physics, Visva-Bharati University, Santiniketan - 731 235, India
      3. Department of Physics, University of Calcutta, Calcutta - 700 009, India

    • Dates

       
      Published
      September 1999

  • Pramana – Journal of Physics | News

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