Skyrme-Hartree-Fock approach to the change of level occupancy of low mass halo nuclei

With a new parameterization of potential parameters which reproduces the ground state properties of shell closed nuclei fairly accurately, the role of occupancy of 2s _1/2 level in determining the halo structures of ¹⁷O, ¹⁶N, ¹⁵C, ¹⁴B, ¹³Be have been investigated. The results show interesting cross over of level occupancies which may explain the increase in interaction radii.