Levels in Odd-Mass Sb and I Isotopes Studied with the (He3,d) Reaction

Abstract

The (${}_{}{}^3{}_{}{}^{}\mathrm{He},d$) reaction has been used to study levels in the residual nuclei ${}_{}{}^{125}{}_{}{}^{}\mathrm{Sb}$, ${}_{}{}^{127}{}_{}{}^{}\mathrm{I}$, ${}_{}{}^{129}{}_{}{}^{}\mathrm{I}$, and ${}_{}{}^{131}{}_{}{}^{}\mathrm{I}$ up to $\approx 4$ MeV in excitation. The experiments were performed at a bombarding energy of 25 MeV using a broadrange magnetic spectrograph. Angular distributions for the deuterons were compared with distorted-wave Born-approximation predictions to obtain orbital angular-momentum transfers and spectroscopic factors for most of the observed levels. States reached by $l$ equal to 0, 2, 4, and probably 5 were observed in each nucleus. A comparison of the present results with previous decay-scheme studies is also shown.