Tetrahedral symmetry in the ground state of 16O

摘要

Based on the Skyrme energy density functional, the self-consistent HF calculations have been performed for16O, and the results show that the double point group tetrahedral symmetryTdDmay play an important role in the configuration of many-body fermion system in the ground state of16O. The corresponding total density distribution in the ground state, calculated by using the HF wave functions, presents the distinct 4αcluster-like tetrahedral structure with theTdsymmetry. Among others, the necessary restoration of the rotational and parity symmetry, plays a crucial role for the occurrence of the tetrahedral symmetry in16O.