Probing the nuclear structure of candidates for neutrinoless double-beta decay with fast neutrons

Abstract The low-lying, low-spin levels of several nuclei which are either the possible parent or daughter for neutrinoless double-beta decay have been studied with the (n,n’γ) reaction. From these measurements, level spins, level lifetimes, γ-ray intensities, and multipole mixing ratios were determined; however, considerable effort must be expended in elaborating the level schemes before comparisons of the level characteristics with large-scale shell model calculations are meaningful.