Relativistic Pseudospin Symmetry as a Supersymmetric Pattern in Nuclei

Abstract

Shell-model states involving several pseudospin doublets and ``intruder'' levels in nuclei, are combined into larger multiplets. The corresponding single-particle spectrum exhibits a supersymmetric pattern whose origin can be traced to the relativistic pseudospin symmetry of a nuclear mean-field Dirac Hamiltonian with scalar and vector potentials.Comment: 8 pages, 4 figures, Proc. 8th Int. Spring Seminar on Nuclear Physics,``Key Topics in Nuclear Structure'', Paestum, Italy, May 23-27, 200