The level structure of 75As
Neutron inelastic scattering has been used to excite levels in 75As. The de-excitation gammas have been observed for incident neutron energies up to 2200 keV. Time-of-flight neutron measurements were made for incident neutron energies up to 1350 keV. The energy levels and decay modes of 75As were deduced and the (n, n') cross sections to each level were measured. Spin and parity assignments are based on a comparison with Hauser-Feshbach calculations and other work on this nucleus. The deduced level structure is compared with theoretical predictions of phenomenological models in which a single particle is coupled to a vibrational or rotational core. © 1974.