Proton magic even-even isotopes and giant halos of Ca isotopes with relativistic continuum Hartree-Bogoliubov theory |
| |
Authors: | Shuangquan?Zhang Email author" target="_blank">Jie?MengEmail author Shangui?Zhou |
| |
Institution: | 1. School of Physics, Peking University, Beijing 100871, China 2. School of Physics, Peking University, Beijing 100871, China;Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China;Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China |
| |
Abstract: | We study the proton magic O, Ca, Ni, Zr, Sn, and Pb isotope chains from the proton drip line to the neutron drip line with
the relativistic continuum Hartree-Bogoliubov (RCHB) theory. Particulary, we study in detail the properties of even-even Ca
isotopes due to the appearance of giant halos in neutron rich Ca nuclei near the neutron drip line. The RCHB theory is able
to reproduce the experimental binding energiesE
b and two neutron separation energiesS
2n very well. The predicted neutron drip line nuclei are28O,72Ca,98Ni,136Zr,176Sn, and266Pb. Halo and giant halo properties predicted in Ca isotopes withA>60 are investigated in detail through analysis of two neutron separation energies, nucleon density distributions, single
particle energy levels, and the occupation probabilities of energy levels including continuum states. The spin-orbit splitting
and the diffuseness of nuclear potential in these Ca isotopes, as well as the neighboring lighter isotopes in the drip line
Ca region and find certain possibilities of giant halo nuclei in the Ne−Na−Mg drip line nuclei are also studied. |
| |
Keywords: | exotic nuclei relativistic continuum Hartree-Bogoliubov theory giant halo root mean square radius spin-orbit splitting |
本文献已被 万方数据 SpringerLink 等数据库收录! |
|