Single-Particle States In Ni-59 With Ni-58(D(Over-Right-Arrow), P) Ni-59 Reaction At 56 Mev And Neutron-Bound-State Complex Potentials

Angular distributions of the cross sections and analyzing powers were measured for the Ni-58(d,p)Ni-59 reaction up to the excitation energy of 10 MeV in Ni-59 with a high-resolution polarized deuteron beam at 56 MeV. Spins and parities were assigned for 33 discrete levels up to the excitation energy of 8 MeV. Spectroscopic factors, single-particle energies and spreading widths of 1f5/2, 2p3/2, 2p1/2, 1g9/2 states were obtained. Neutron-bound-state complex potentials have been calculated from the resultant spreading widths and energies together with results from other one-nucleon transfer-reaction experiments on nickel and calcium isotopes. It is found that the energy dependence of the spreading widths of the single-particle and -hole states and then the imaginary parts of the bound-state potentials in the excitation energy region of 0-10 MeV show a symmetrical behavior with respect to the Fermi surface.