Neutron-spectroscopic strength in Ru isotopes

Abstract

A systematic, high resolution (6--8 keV) study of (d,t) reactions on $^{100,102,104}\mathrm{Ru}$ is reported. Spectroscopic factors were extracted by comparison of experimental angular distributions with distorted wave Born approximation predictions. All of the information for $^{99}\mathrm{Ru}$ and, for excitation energies above 0.9 MeV, for $^{103}\mathrm{Ru}$ is new. Most of the strength expected for the 50--82 neutron shell was found. The strength distributions are discussed, also in comparison with the corresponding stripping reactions. Special attention is focused on extremely low and relatively intense l=3 excitations and on the l=4 transfer pattern observed.