Emergence of new magic numbers, N=16 and 32 by tensor interaction in Skyrme-Hartree-Fock theory

作者：Bhattacharya Rupayan^*

来源：Pramana - Journal of Physics, 2014, 83(4): 519-532.

DOI：10.1007/s12043-014-0809-3

• Nuclear shells
• Skyrme-Hartree-Fock theory
• tensor interaction
• spin-orbit splitting

Melting of N = 20 shell and development of N = 16 and 32 shells for neutron-rich nuclei have been studied extensively by including tensor interaction in Skyrme-Hartree-Fock theory optimized to reproduce the splitting Delta 1f shells of Ca-40,Ca-48 and Ni-56 nuclei. Evolution of gap generated by the energy difference of single-particle levels nu 2s (1/2) and nu 1d (3/2) has been found to be responsible for shell closure at N = 16. The splitting pattern of spin-orbit partners 2p shell model state in Ca, Ti, Cr, Fe and Ni isotopes indicates the formation of a new shell at N = 32 region.

• 出版日期2014-10