Anomalies in the Cross Sections of (d,n) Reactions Leading to Isobaric Analog States

The ($d,n$) reactions on the nuclei ${}_{}{}^{92}{}_{}{}^{}\mathrm{Mo}$, ${}_{}{}^{94}{}_{}{}^{}\mathrm{Mo}$, ${}_{}{}^{96}{}_{}{}^{}\mathrm{Mo}$, and ${}_{}{}^{96}{}_{}{}^{}\mathrm{Zr}$ leading to the isobaric analog states in the residual nuclei have been studied. The observed ($d,n$)-reaction cross sections show strong deviations from the distorted-wave Born-approximation calculations based upon the known neutron spectroscopic factors of the corresponding parent analog states.