The reaction Rb(d,p)Rb near the coulomb barrier

Cross sections for the reaction ⁸⁷Rb(d, p)⁸⁸Rb induced by 4 to 6 MeV deuterons were measured to obtain spectroscopic data on levels in ⁸⁸Rb. The Q-value for the reaction to the ground state of ⁸⁸Rb was 3.837 ± 0.020 MeV. In addition twenty-three levels up to 3 MeV excitation in ⁸⁸Rb were populated. Four different deuteron optical model parameter sets, which fit our ⁸⁷Rb(d, d) elastic scattering data, were used in a DWBA analysis. Assignments of l_n, were made to nine levels on the basis of angular distribution shapes and excitation functions. Relative spectroscopic factors were determined with a maximum deviation of only 15%. However absolute spectroscopic factors were extremely sensitive to the neutron radius parameter, and hence the normalization of the bound neutron wave functions. The structure of ⁸⁸Rb is discussed.