Shell-model study of the N = 82 isotonic chain with a realistic effective Hamiltonian

摘要: We have performed shell-model calculations for the even- and odd-mass $N=82$ isotones, focusing attention on low-energy states. The single-particle energies effective two-body interaction both been determined within framework of time-dependent degenerate linked-diagram perturbation theory, starting from a low-momentum derived CD-Bonn nucleon-nucleon potential. In this way, no phenomenological input enters our Hamiltonian, whose reliability is evidenced by good agreement between theory experiment.