The Radiative Capture of Alpha Particles in15N

Abstract

The 15N(α, γ)19F reaction has been examined with bombarding energy from 1.2 to 2.35 MeV. Three resonances have been found, two narrow and one of measurable width. The cascade schemes at each of the resonances have been partly elucidated, and the partial radiative widths of the resonances have been determined, except for a statistical factor. Some of the angular distributions have been measured, and conclusions have been drawn about the possible values of the spins and parities of the levels concerned. The relation of these results to the predictions of Elliott and Flowers is briefly discussed.