• Shape evolution in 76,78Kr nuclei at high spins in tilted axis cranking Hartree–Fock–Bogoliubov approach

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      https://www.ias.ac.in/article/fulltext/pram/068/01/0105-0110

    • Keywords

       

      76,78Kr nuclei; high spin states; shape evolution; tilted axis cranking Hartree–Fock–Bogoliubov theory.

    • Abstract

       

      A two-dimensional tilted axis cranking Hartree–Fock–Bogoliubov (CHFB) calculation is performed for 76Kr and 78Kr nuclei up to high spins $J = 30$ employing a pairing-plus-quadrupole (PPQ) model interaction Hamiltonian. Intricate details of the evolution of single particle structures and shapes as a function of spin have been investigated. The results show the existence of energy levels with high 𝐾 quantum numbers lying close to the yrast line in both the nuclei. Such high 𝐾 states should exhibit isomeric characteristics due to the 𝐾-selection rules for the 𝛾-decays. Moreover, in 78Kr a new band with $J = 20–30$ lying below the observed ground band is predicted.

    • Author Affiliations

       

      A Ansari1 P Sharma2 U R Jakhar2 H L Yadav2 3

      1. Institute of Physics, Bhubaneswar 751 005, India
      2. Department of Physics, Rajasthan University, Jaipur 302 004, India
      3. Department of Physics, Banaras Hindu University, Varanasi 221 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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