Protons from the alpha-particle bombardment of 27Al

Abstract

Energies and strengths are reported of ninety-one 27Al(α, p) 30Si resonances, observed in the energy range Eα = 1.0–3.3 MeV. The natural width of thirteen resonances and the partial widths of one resonance are reported. The observed level density of 31P is in agreement with theory.

Angular distributions of ground-state protons, measured at twenty-six resonances, yield unique spin values for ten levels and the parity of five of these. At twelve resonances the angular distributions exhibit level-interference effects.