Energy Levels and Transitions inAs75from the (n,n′γ) Reaction

High-resolution measurements of the deexcitation $\gamma$ rays from the ${}_{}{}^{75}{}_{}{}^{}\mathrm{As}(n,n^{\prime }\gamma )$ reaction have been made at 0.1-MeV intervals for incident neutrons between the energies of 0.8 and 2.2 MeV. These $\gamma$ rays are assigned to energy levels up to an excitation of 1606 keV in ${}_{}{}^{75}{}_{}{}^{}\mathrm{As}$. The level scheme is compared with that obtained in a recent resonance scattering experiment, and several new levels are proposed. Branching ratios and differential $\gamma$-ray production cross sections at 95° are determined.