Interfering resonances in the 19F(α,p)22Ne reaction

Abstract

Energies and strengths are reported of twenty-seven 19F(α,p)22Ne resonances in the Eα=1.3−2.6 MeV region. Transitions are observed to the 22Ne ground state and first excited state. A yield curve for the Eα=1.3−3.3 MeV region is presented. Angular distributions of the ground-state protons are measured as a function of energy. The analysis in terms of the theory of interfering resonances yields the spins of fifteen resonances and the parity of five of these. Information is obtained about widths, partial widths and reduced widths of the observed levels.