• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/061/03/0517-0527

    • Keywords

       

      Relativistic mean field theory; magic number; shell structures; drip-line

    • Abstract

       

      In an axially deformed relativistic mean-field calculation of single-particle energy spectra ofN = 8 (Li-Mg) andN = 14,16 (C-Mg) isotonic chain and the one- and two-neutron separation energies of various isotopes of Li-Mg, new magic numbers are found to exist atN = 6 andN = 16 and/orN = 14, which are in addition to theN = 8 andN = 20 magic numbers. In neutron-rich nuclei, the shell gap atN = 6 is larger than atN = 8 and a large gap is observed forN = 16 or 14 for the neutron-rich andN = 14 for proton-rich nuclei. Large shell gaps are also found to exist atN = 14 and 16 orN = 16 alone for nuclei near theβ-stability line. The above results are independent of the parameter sets TM2, NL3 and NL-SH used here. Similarly, new large shell gaps are predicted atZ = 616 and/or 14 for protons.

    • Author Affiliations

       

      T K Jha1 M S Mehta2 S K Patra3 B K Raj4 Raj K Gupta2

      1. Department of Physics, Sambalpur University, Jyoti Vihar, Burla - 768 019, India
      2. Department of Physics, Panjab University, Chandigarh - 160 014, India
      3. Institute of Physics, Sachivalaya Marg, Bhubaneswar - 751 005, India
      4. Department of Physics, B J B College, Bhubaneswar - 751 014, India
    • Dates

       
  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.