Study Of The Exotic Structure Of Light Nuclei 8He And 12Be Using The Hartree-Fock And Bear-Hodgson Potentials

Abstract

The ground-state properties like the nuclear densities and the rms radii for exotic neutron-rich nuclei ⁸He and ¹²Be have been investigated using the Skyrme-Hartree-Fock and Bear-Hodgson potentials. The evaluated results are compared with available experimental data. It found that a common feature of the neutron and matter densities for above selected exotic nuclei is the long tail behavior. The two valence neutrons of ⁸He and ¹²Be are assumed to be in the ZBM model space (consists of 1p_1/2, 1d_5/2 and 2s_1/2).  It has been obvious that the structure of the outer two neutrons for these nuclei is mixed configuration with dominant (1p_1/2)². The elastic charge form factors of above selected exotic nuclei are evaluated using the plane wave Born approximation and compared with those of their stable isotopes ⁴He and ⁹Be.