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      https://www.ias.ac.in/article/fulltext/pram/084/01/0087-0099

    • Keywords

       

      Signature inversion; odd–even staggering; Coriolis coupling; particle–particle coupling.

    • Abstract

       

      Systematic features of the signature inversion phenomenon in $(h_{11/2})_{\text{p}}\otimes (i_{13/2})_{\text{n}}$ in doubly-odd rare-earth nuclei are presented. These features are generally observed in high-$j$ orbitals, mainly, in $(h_{9/2})$, $(h_{11/2})$ and $(i_{13/2})$. Calculations are carried out within the framework of the two quasiparticle plus rotor model (TQPRM) to explain strong odd–even staggering and signature inversion observed in these high-$j$ orbitals. The shifting of point of inversion to lower/higher spin with the increase in neutron/proton numbers is well explained by the calculations. It is found that 1/2[541] proton orbital of $h_{9/2}$ is necessary in the lower mass region to obtain the point of inversion.

    • Author Affiliations

       

      Kawalpreet Kalra1 Alpana Goel2 Sukhjeet Singh3 Sushil Kumar3 A K Jain4

      1. Department of Physics, Amity Institute of Applied Sciences, Amity University, Noida 201 303, India
      2. Amity Institute of Nuclear Science and Technology, Amity University, Noida 201 303, India
      3. Department of Physics, Maharishi Markandeshwar University, Mullana 133 207, India
      4. Department of Physics, Indian Institute of Technology, Roorkee 247 667, India
    • Dates

       
  • Pramana – Journal of Physics | News

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