Study of the Odd Strontium Isotopes with Stripping and Pickup Reactions

Abstract

The ($d,t$) and ($d,p$) reactions induced by 20.65-MeV deuterons have been used to study the levels of ${}_{}{}^{87}{}_{}{}^{}\mathrm{Sr}$ and ${}_{}{}^{85}{}_{}{}^{}\mathrm{Sr}$ up to an excitation of 3 MeV. The mass defect of ${}_{}{}^{83}{}_{}{}^{}\mathrm{Sr}$ has been determined by the ($d,t$) reaction, and its level structure below 3 MeV has been investigated. The cross sections have been analyzed with the distorted-wave Born approximation (DWBA) to determine the $l$ values of the neutron transfers and the spectroscopic factors. Tentative spin assignments have been made on the basis of sum rules and the $j$ dependence of the cross sections.