PSEUDOSPIN SYMMETRY IN RELATIVISTIC MEAN-FIELD THEORY

Relating the pseudospin symmetry back to the Dirac equation through th e framework of relativistic Hartree-Bogoliubov (RHB) theory, the pseud ospin approximation in real nuclei is discussed. From the Dirac equati on, the mechanism behind the pseudospin symmetry was studied and the p seudospin symmetry is shown to be connected with the competition betwe en the centrifugal barrier (CB) and the pseudospin orbital potential ( PSOP), which is mainly decided by the derivative of the difference bet ween the scalar and vector potentials. With the scalar and vector pote ntials derived from a self-consistent relativistic Hartree-Bogoliubov calculation, the pseudospin symmetry and its energy dependence in real nuclei is discussed.