States in 20 Ne from 19 F(p, p) and 19 F(p, α) reactions at E p =(1.5÷2.1) MeV

Absolute differential cross-sections for19F(p, p) elastic scattering and19F(p, ∝0-π), (p, ∝1-3)reactions were measured forEp=(1.5÷ ÷2.1) MeV. The elastic-scattering19F(p, p) data were analysed in the framework of theR-matrix theory. Six resonances have been observed and their parameters determined. Three other resonances have been identified in the19F(p, α) reactions. The 0+, 14.47 MeV state in20Ne has been identified as aT=1 state and is suggested to be the isobaric analogue state of the 4.315 MeV state in20F.