New measurements of the 19F(p, α0,π)16O reaction cross sections close to the Coulomb barrier

Abstract

We report new cross section data for the ¹⁹F(p, ${\alpha }_{0,\pi }$)¹⁶O reactions at low energies, especially in the 1.1-1.3 MeV region, where few data for the ${\alpha }_{\pi }$ channel are reported, and in the 1.6-1.7 MeV energy region, to solve a long-standing discrepancy between existing data sets for the ${\alpha }_0$ channel. The new data were included in a comprehensive R-matrix fit, and some suggestions on the cluster nature of ²⁰Ne states in the 14-15 MeV excitation energy region were discussed.